This slide includes Acid - Base balance, Respiratory and Metabolic Acidosis, Alkalosis , their causes, clinical features and treatment . This slide is helpful for UG students
Respiratory acidosis and alkalosis as well as metabolic acidosis and alkalosis are discussed.
The key points are:
- Respiratory acidosis is defined as increased PaCO2 and decreased pH due to inadequate alveolar ventilation. Metabolic acidosis is defined as decreased HCO3 and pH.
- Causes, clinical manifestations, and management strategies are outlined for each condition.
- Mixed acid-base disorders can occur, and compensatory mechanisms aim to return pH to normal levels through respiratory and renal responses.
- A structured approach is recommended to diagnose acid-base disorders based on blood gas results, including evaluating pH, PaCO2, HCO3, and anion
this slide focuses on all the acid base disorder pertaining to the respiratory system. it focus on the compensatory mechanism, causes, clinical features and treatment.
This document discusses acid-base disorders. It begins by outlining the aims of examining pH, determining the primary disorder, calculating the anion gap, assessing compensation, and defining the disorder and treatment. It then provides introductions to pH, the Henderson-Hasselbalch equation, arterial blood gas analyses, and the anion gap. The document proceeds to discuss types of acid-base disorders including metabolic acidosis, respiratory acidosis, metabolic alkalosis, and respiratory alkalosis. It covers causes, symptoms, and treatments for each. An example case is presented of a patient with respiratory alkalosis.
Acid base imbalances nursing care plan & managementNursing Path
Acid–base imbalance is an abnormality of the human body’s normal balance of acids and bases that causes the plasma pH to deviate out of the normal range (7.35 to 7.45).
Acidosis and alkalosis describe abnormal blood pH levels caused by acid-base imbalances. The lungs and kidneys work to regulate blood pH between 7.35-7.45. Acidosis occurs when blood pH falls below 7.35 due to increased acid production or decreased excretion. Alkalosis occurs when pH rises above 7.45 due to electrolyte disturbances, vomiting, or base administration. Blood gas tests measure pH, pCO2, and pO2 levels while electrolyte tests measure sodium, potassium, chloride, and bicarbonate to identify the type and cause of acid-base disorder. Treatment focuses on addressing the underlying condition causing the imbalance.
Respiratory acidosis and alkalosis are acid-base disorders caused by problems with ventilation.
Respiratory acidosis occurs when Paco2 is elevated due to conditions that decrease ventilation like lung disease or muscle fatigue. It causes a decrease in pH but HCO3 rises in compensation. Chronic respiratory acidosis is treated by gradually lowering Paco2.
Respiratory alkalosis is caused by excessive ventilation lowering Paco2, seen in anxiety, pain, or drug effects. It increases pH but HCO3 falls as the kidneys compensate. Severe acute respiratory alkalosis can reduce blood flow and cause arrhythmias.
This document discusses respiratory and metabolic acidosis and alkalosis. It covers:
- The definitions and mechanisms of respiratory acidosis, respiratory alkalosis, metabolic acidosis, and metabolic alkalosis.
- The causes, signs and symptoms, and compensation mechanisms for each condition.
- Specific types like acute vs chronic respiratory acidosis, and chloride responsive vs chloride resistant metabolic alkalosis.
- How the kidneys, lungs, and buffering systems work to regulate pH and compensate for acid-base imbalances.
Respiratory acidosis and alkalosis as well as metabolic acidosis and alkalosis are discussed.
The key points are:
- Respiratory acidosis is defined as increased PaCO2 and decreased pH due to inadequate alveolar ventilation. Metabolic acidosis is defined as decreased HCO3 and pH.
- Causes, clinical manifestations, and management strategies are outlined for each condition.
- Mixed acid-base disorders can occur, and compensatory mechanisms aim to return pH to normal levels through respiratory and renal responses.
- A structured approach is recommended to diagnose acid-base disorders based on blood gas results, including evaluating pH, PaCO2, HCO3, and anion
this slide focuses on all the acid base disorder pertaining to the respiratory system. it focus on the compensatory mechanism, causes, clinical features and treatment.
This document discusses acid-base disorders. It begins by outlining the aims of examining pH, determining the primary disorder, calculating the anion gap, assessing compensation, and defining the disorder and treatment. It then provides introductions to pH, the Henderson-Hasselbalch equation, arterial blood gas analyses, and the anion gap. The document proceeds to discuss types of acid-base disorders including metabolic acidosis, respiratory acidosis, metabolic alkalosis, and respiratory alkalosis. It covers causes, symptoms, and treatments for each. An example case is presented of a patient with respiratory alkalosis.
Acid base imbalances nursing care plan & managementNursing Path
Acid–base imbalance is an abnormality of the human body’s normal balance of acids and bases that causes the plasma pH to deviate out of the normal range (7.35 to 7.45).
Acidosis and alkalosis describe abnormal blood pH levels caused by acid-base imbalances. The lungs and kidneys work to regulate blood pH between 7.35-7.45. Acidosis occurs when blood pH falls below 7.35 due to increased acid production or decreased excretion. Alkalosis occurs when pH rises above 7.45 due to electrolyte disturbances, vomiting, or base administration. Blood gas tests measure pH, pCO2, and pO2 levels while electrolyte tests measure sodium, potassium, chloride, and bicarbonate to identify the type and cause of acid-base disorder. Treatment focuses on addressing the underlying condition causing the imbalance.
Respiratory acidosis and alkalosis are acid-base disorders caused by problems with ventilation.
Respiratory acidosis occurs when Paco2 is elevated due to conditions that decrease ventilation like lung disease or muscle fatigue. It causes a decrease in pH but HCO3 rises in compensation. Chronic respiratory acidosis is treated by gradually lowering Paco2.
Respiratory alkalosis is caused by excessive ventilation lowering Paco2, seen in anxiety, pain, or drug effects. It increases pH but HCO3 falls as the kidneys compensate. Severe acute respiratory alkalosis can reduce blood flow and cause arrhythmias.
This document discusses respiratory and metabolic acidosis and alkalosis. It covers:
- The definitions and mechanisms of respiratory acidosis, respiratory alkalosis, metabolic acidosis, and metabolic alkalosis.
- The causes, signs and symptoms, and compensation mechanisms for each condition.
- Specific types like acute vs chronic respiratory acidosis, and chloride responsive vs chloride resistant metabolic alkalosis.
- How the kidneys, lungs, and buffering systems work to regulate pH and compensate for acid-base imbalances.
This document discusses acid-base disorders including metabolic acidosis, metabolic alkalosis, respiratory acidosis, and respiratory alkalosis. It defines each condition, lists common causes, clinical features, compensation mechanisms, and general treatment approaches. Metabolic acidosis is caused by losses of bicarbonate or gains of acid and can be categorized as normal anion gap or high anion gap. Causes include diarrhea, renal tubular acidosis, ketoacidosis, lactic acidosis, and certain toxins. Respiratory acidosis results from inadequate alveolar ventilation leading to elevated PaCO2 levels. Its causes include drugs, stroke, obstructive airway diseases, and neuromuscular disorders.
This document provides an overview of acid-base disorders. It discusses normal acid-base physiology and the key factors involved in maintaining balance. It then examines different types of acid-base disorders including metabolic and respiratory acidosis and alkalosis. For each disorder it covers etiology, pathology, clinical features, diagnostic studies, and management. The document also addresses mixed disorders and provides steps for calculating and analyzing acid-base measurements from arterial blood gases.
Acid-base disorders occur when pH levels fall outside the normal range of 7.35-7.45. Precise pH regulation is vital for cellular functions and physiological processes. Buffers like bicarbonate help control hydrogen ion concentration. Disorders are classified as metabolic, affecting bicarbonate levels, or respiratory, affecting carbon dioxide levels. The kidneys and lungs work to compensate for changes and return pH to normal ranges through bicarbonate and carbon dioxide regulation. However, compensation cannot fully correct pH without also treating the underlying cause.
This document discusses acid-base imbalances, including their interpretation based on pH, PCO2 and HCO3 levels. It describes the causes and types of metabolic and respiratory acidosis and alkalosis. Anion gap is explained as a way to determine the cause of acid-base imbalances. Causes of large, normal and small anion gap metabolic acidosis are provided. Compensated versus uncompensated acid-base imbalances are also summarized. Oxygen delivery methods and the management of type 2 diabetes mellitus are briefly covered.
An arterial blood gas (ABG) analysis measures pH, oxygen, and carbon dioxide levels in the blood to help diagnose respiratory and metabolic conditions. It requires collecting a blood sample directly from an artery, usually the radial artery in the wrist. Normal ABG values include a pH of 7.35-7.45, PaO2 of 80-90 mmHg, PaCO2 of 35-45 mmHg, and HCO3- of 22-26 mEq/L. Complications can include bleeding, hematoma, and infection if not performed correctly. The results are used to identify respiratory issues like hypoxia or acidosis and metabolic derangements.
Seminar (dr. santosh) medicine practical approach to acid base disordersSantosh Narayankar
This document provides an overview of acid-base disorders, including their importance, physiology, regulation, primary disorders, compensation, and evaluation. It defines key terms like pH, buffers, and discusses the respiratory and renal systems' roles in regulation. The four primary disorders are described as being metabolic or respiratory based on the initial disturbance. Mixed disorders and expected compensation patterns are also covered. Examples of acid-base disorders in patients are provided to demonstrate application of the concepts.
Metabolic acidosis is a serious electrolyte disorder characterized by an imbalance in the body's acid-base balance. Metabolic acidosis has three main root causes: increased acid production, loss of bicarbonate, and a reduced ability of the kidneys to excrete excess acids.
Metabolic acidosis can be caused by acid accumulation due to increased acid production or acid ingestion; decreased acid excretion; or GI or renal bicarbonate (HCO3−) loss.
The diagnosis is made by evaluating serum electrolytes and ABGs. A low serum HCO3- and a pH of less than 7.40 upon ABG analysis confirm metabolic acidosis. The anion gap (AG) should be calculated to help with the differential diagnosis of the metabolic acidosis and to diagnose mixed disorders.
this is a case study om metabolic acidosis prepared for my academic purpose .
please comment
thank u......
This document provides information about arterial blood gas (ABG) analysis for nursing education. It begins with an introduction on the importance of ABG analysis for diagnosing acid-base balance and oxygenation status. It then covers topics like the basic definitions of acid and base, the buffer system, mechanisms of acid-base regulation, types of acid-base disorders, arterial blood gas components, procedures for ABG sample collection and interpretation, and the nurse's role in ABG analysis. Examples are provided to demonstrate how to interpret ABG results and assess a patient's oxygenation and ventilation status.
Respiratory alkalosis is caused by hyperventilation leading to excessive loss of carbon dioxide from the body. This alters the chemical equilibrium of carbon dioxide in the blood, increasing pH and decreasing carbon dioxide and bicarbonate levels. The kidneys can help regulate pH through reducing excretion of acids and bicarbonate reabsorption. Symptoms may include tingling in the extremities. Metabolic alkalosis is caused by increased bicarbonate in the blood due to loss of stomach acid or administration of bicarbonate solutions. This increases pH and bicarbonate while also increasing carbon dioxide. The body can compensate through reducing breathing rate and retaining more carbon dioxide.
Metabolic acidosis and metabloic alkalosiskarrar adil
This document discusses acid-base balance and metabolic acidosis. It defines metabolic acidosis as a primary decrease in bicarbonate levels and describes the three mechanisms by which pathological processes can cause it. A fall in plasma bicarbonate without a proportional reduction in PaCO2 decreases pH. Treatment of metabolic acidosis focuses on controlling acidity through respiration and administering sodium bicarbonate or dialysis. The document also discusses metabolic alkalosis, distinguishing between chloride-sensitive and chloride-resistant types, and treatments involving saline, potassium, and mineralocorticoid antagonists. Anesthetic considerations are outlined for patients with acidosis or alkalemia.
- Acid-base balance regulation involves multiple mechanisms working together to maintain pH within normal ranges, including buffer systems, respiration, and kidney function. Imbalances can occur due to metabolic or respiratory causes.
- Metabolic acidosis occurs when acids are produced faster than they can be removed, usually due to kidney problems. Symptoms include nausea and breathing changes. Treatment focuses on identifying and treating the underlying cause.
- Respiratory acidosis occurs when carbon dioxide levels are elevated due to decreased ventilation, leading to acidification of the blood. Causes include lung diseases and drugs. Symptoms range from restlessness to coma. Treatment aims to restore ventilation and address underlying issues.
1. The document discusses acid-base imbalances and how to interpret arterial blood gases (ABGs).
2. It outlines the steps to analyze ABGs which include determining if there is acidemia or alkalemia, identifying if the disturbance is respiratory or metabolic, and assessing compensation.
3. Causes of different acid-base imbalances are provided such as respiratory acidosis resulting from airway obstruction or increased carbon dioxide production, and metabolic acidosis occurring in conditions like diabetic ketoacidosis or lactic acidosis.
This document discusses acid-base disorders and their physiology, regulation, and treatment. It begins by introducing acid-base balance and pH in the body. It then covers the chemical buffer systems that help regulate pH, as well as the roles of respiration and the kidneys. It discusses different types of acid-base disorders like metabolic acidosis and alkalosis, respiratory acidosis and alkalosis, and mixed disorders. Interpretation of blood gas analysis and various approaches for analyzing acid-base status are also outlined. Throughout, compensation mechanisms and typical treatment approaches for each disorder are described.
This document discusses acid-base disorders and interpretation of arterial blood gases (ABGs) and spirometry. It provides:
1. An overview of acid-base homeostasis and the three major methods to quantify acid-base disorders - the physiological approach, base-excess approach, and physicochemical approach.
2. The normal ranges for parameters in an ABG report like pH, PaCO2, PaO2, HCO3, and SaO2.
3. A step-wise approach to solving acid-base disorders, including assessing validity, determining if there is acidemia or alkalemia, identifying the primary disorder, assessing compensation, calculating anion gap, and calculating delta gap to
Metabolic acidosis is a condition where the blood has too much acid or too little base, resulting in a decrease in blood pH and plasma bicarbonate levels. It occurs when an acid other than carbon dioxide accumulates in the body. There are two primary types: normal anion gap metabolic acidosis and high anion gap metabolic acidosis. The body compensates for metabolic acidosis initially through respiratory hyperventilation and later through renal mechanisms such as bicarbonate retention and acid excretion. Diagnosis involves arterial blood gas analysis and identifying the underlying cause through clinical evaluation, lab tests, and anion gap calculations. Treatment focuses on correcting the underlying disorder and managing symptoms, with bicarbonate therapy reserved for
An arterial blood gas test involves puncturing an artery, usually the radial artery, to draw blood and measure acidity, oxygen and carbon dioxide levels. It can help diagnose conditions, guide treatment, and monitor ventilator management. The test measures pH, pO2, pCO2, HCO3, SaO2 and base excess. Abnormal results can indicate respiratory or metabolic acidosis or alkalosis which have distinct causes, signs, and treatments. Interpreting blood gases involves assessing oxygenation, acid-base status, and whether the disturbance is primarily respiratory or metabolic in nature.
This document discusses acid-base balance and imbalance. It defines key terms like pH, acids, and bases. The body regulates acid-base balance through buffering systems, respiratory compensation, and renal compensation. Acid-base imbalance can be diagnosed using arterial blood gases and anion gap tests. The main types of imbalance are respiratory acidosis and alkalosis from lung issues, and metabolic acidosis and alkalosis from kidney or production problems. Causes, signs, and compensation methods are described for each type.
This document discusses acid-base balance and interpreting blood gas results. It defines terms like acidosis, alkalosis, respiratory acidosis, and metabolic alkalosis. It provides normal ranges for pH, pCO2, HCO3, and base excess. Causes of different acid-base imbalances are outlined, such as respiratory acidosis resulting from alveolar hypoventilation or metabolic acidosis from ketoacidosis. The document concludes with instructions to first examine the pH to determine if acidosis or alkalosis is present, then examine pCO2 to determine if the primary problem is respiratory or metabolic based on the relationship between pH and pCO2 changes.
The document provides information on interpreting arterial blood gases (ABGs), including:
- A 6-step process for interpretation involving assessing pH, identifying the primary disorder as respiratory or metabolic, evaluating compensation, calculating anion gap, and considering differential diagnoses.
- Tables listing normal ranges for ABG components like pH, PaCO2, HCO3, and bases for common acid-base disorders.
- Explanations of key components like pH, partial pressure, base excess, bicarbonate, and their relationships in respiratory and metabolic acidosis/alkalosis.
- Causes and mechanisms of respiratory and metabolic acidosis and alkalosis are outlined.
This document discusses arterial blood gases and their interpretation. Arterial blood gases measure oxygenation, gas exchange, and acid-base balance by examining the partial pressure of oxygen (PaO2), oxygen saturation (SaO2), pH, partial pressure of carbon dioxide (PaCO2), and bicarbonate (HCO3) levels. Abnormal values can indicate hypoxemia, respiratory or metabolic acidosis/alkalosis. The kidneys and lungs work to maintain appropriate acid-base balance and oxygenation through compensation mechanisms.
Arterial Blood Gases (2) their medical and .pptxzeexhi1122
This document provides an overview of arterial blood gases (ABGs), including:
1. It defines ABGs as a test that measures oxygen, carbon dioxide, pH, and acid-base levels in arterial blood to evaluate respiratory function, oxygenation, and acid-base status.
2. Normal ABG values are listed for pH, PCO2, PO2, HCO3, and oxygen saturation.
3. The roles of the lungs and kidneys in maintaining acid-base balance through excretion of carbon dioxide and regulation of bicarbonate are described.
This document discusses acid-base disorders including metabolic acidosis, metabolic alkalosis, respiratory acidosis, and respiratory alkalosis. It defines each condition, lists common causes, clinical features, compensation mechanisms, and general treatment approaches. Metabolic acidosis is caused by losses of bicarbonate or gains of acid and can be categorized as normal anion gap or high anion gap. Causes include diarrhea, renal tubular acidosis, ketoacidosis, lactic acidosis, and certain toxins. Respiratory acidosis results from inadequate alveolar ventilation leading to elevated PaCO2 levels. Its causes include drugs, stroke, obstructive airway diseases, and neuromuscular disorders.
This document provides an overview of acid-base disorders. It discusses normal acid-base physiology and the key factors involved in maintaining balance. It then examines different types of acid-base disorders including metabolic and respiratory acidosis and alkalosis. For each disorder it covers etiology, pathology, clinical features, diagnostic studies, and management. The document also addresses mixed disorders and provides steps for calculating and analyzing acid-base measurements from arterial blood gases.
Acid-base disorders occur when pH levels fall outside the normal range of 7.35-7.45. Precise pH regulation is vital for cellular functions and physiological processes. Buffers like bicarbonate help control hydrogen ion concentration. Disorders are classified as metabolic, affecting bicarbonate levels, or respiratory, affecting carbon dioxide levels. The kidneys and lungs work to compensate for changes and return pH to normal ranges through bicarbonate and carbon dioxide regulation. However, compensation cannot fully correct pH without also treating the underlying cause.
This document discusses acid-base imbalances, including their interpretation based on pH, PCO2 and HCO3 levels. It describes the causes and types of metabolic and respiratory acidosis and alkalosis. Anion gap is explained as a way to determine the cause of acid-base imbalances. Causes of large, normal and small anion gap metabolic acidosis are provided. Compensated versus uncompensated acid-base imbalances are also summarized. Oxygen delivery methods and the management of type 2 diabetes mellitus are briefly covered.
An arterial blood gas (ABG) analysis measures pH, oxygen, and carbon dioxide levels in the blood to help diagnose respiratory and metabolic conditions. It requires collecting a blood sample directly from an artery, usually the radial artery in the wrist. Normal ABG values include a pH of 7.35-7.45, PaO2 of 80-90 mmHg, PaCO2 of 35-45 mmHg, and HCO3- of 22-26 mEq/L. Complications can include bleeding, hematoma, and infection if not performed correctly. The results are used to identify respiratory issues like hypoxia or acidosis and metabolic derangements.
Seminar (dr. santosh) medicine practical approach to acid base disordersSantosh Narayankar
This document provides an overview of acid-base disorders, including their importance, physiology, regulation, primary disorders, compensation, and evaluation. It defines key terms like pH, buffers, and discusses the respiratory and renal systems' roles in regulation. The four primary disorders are described as being metabolic or respiratory based on the initial disturbance. Mixed disorders and expected compensation patterns are also covered. Examples of acid-base disorders in patients are provided to demonstrate application of the concepts.
Metabolic acidosis is a serious electrolyte disorder characterized by an imbalance in the body's acid-base balance. Metabolic acidosis has three main root causes: increased acid production, loss of bicarbonate, and a reduced ability of the kidneys to excrete excess acids.
Metabolic acidosis can be caused by acid accumulation due to increased acid production or acid ingestion; decreased acid excretion; or GI or renal bicarbonate (HCO3−) loss.
The diagnosis is made by evaluating serum electrolytes and ABGs. A low serum HCO3- and a pH of less than 7.40 upon ABG analysis confirm metabolic acidosis. The anion gap (AG) should be calculated to help with the differential diagnosis of the metabolic acidosis and to diagnose mixed disorders.
this is a case study om metabolic acidosis prepared for my academic purpose .
please comment
thank u......
This document provides information about arterial blood gas (ABG) analysis for nursing education. It begins with an introduction on the importance of ABG analysis for diagnosing acid-base balance and oxygenation status. It then covers topics like the basic definitions of acid and base, the buffer system, mechanisms of acid-base regulation, types of acid-base disorders, arterial blood gas components, procedures for ABG sample collection and interpretation, and the nurse's role in ABG analysis. Examples are provided to demonstrate how to interpret ABG results and assess a patient's oxygenation and ventilation status.
Respiratory alkalosis is caused by hyperventilation leading to excessive loss of carbon dioxide from the body. This alters the chemical equilibrium of carbon dioxide in the blood, increasing pH and decreasing carbon dioxide and bicarbonate levels. The kidneys can help regulate pH through reducing excretion of acids and bicarbonate reabsorption. Symptoms may include tingling in the extremities. Metabolic alkalosis is caused by increased bicarbonate in the blood due to loss of stomach acid or administration of bicarbonate solutions. This increases pH and bicarbonate while also increasing carbon dioxide. The body can compensate through reducing breathing rate and retaining more carbon dioxide.
Metabolic acidosis and metabloic alkalosiskarrar adil
This document discusses acid-base balance and metabolic acidosis. It defines metabolic acidosis as a primary decrease in bicarbonate levels and describes the three mechanisms by which pathological processes can cause it. A fall in plasma bicarbonate without a proportional reduction in PaCO2 decreases pH. Treatment of metabolic acidosis focuses on controlling acidity through respiration and administering sodium bicarbonate or dialysis. The document also discusses metabolic alkalosis, distinguishing between chloride-sensitive and chloride-resistant types, and treatments involving saline, potassium, and mineralocorticoid antagonists. Anesthetic considerations are outlined for patients with acidosis or alkalemia.
- Acid-base balance regulation involves multiple mechanisms working together to maintain pH within normal ranges, including buffer systems, respiration, and kidney function. Imbalances can occur due to metabolic or respiratory causes.
- Metabolic acidosis occurs when acids are produced faster than they can be removed, usually due to kidney problems. Symptoms include nausea and breathing changes. Treatment focuses on identifying and treating the underlying cause.
- Respiratory acidosis occurs when carbon dioxide levels are elevated due to decreased ventilation, leading to acidification of the blood. Causes include lung diseases and drugs. Symptoms range from restlessness to coma. Treatment aims to restore ventilation and address underlying issues.
1. The document discusses acid-base imbalances and how to interpret arterial blood gases (ABGs).
2. It outlines the steps to analyze ABGs which include determining if there is acidemia or alkalemia, identifying if the disturbance is respiratory or metabolic, and assessing compensation.
3. Causes of different acid-base imbalances are provided such as respiratory acidosis resulting from airway obstruction or increased carbon dioxide production, and metabolic acidosis occurring in conditions like diabetic ketoacidosis or lactic acidosis.
This document discusses acid-base disorders and their physiology, regulation, and treatment. It begins by introducing acid-base balance and pH in the body. It then covers the chemical buffer systems that help regulate pH, as well as the roles of respiration and the kidneys. It discusses different types of acid-base disorders like metabolic acidosis and alkalosis, respiratory acidosis and alkalosis, and mixed disorders. Interpretation of blood gas analysis and various approaches for analyzing acid-base status are also outlined. Throughout, compensation mechanisms and typical treatment approaches for each disorder are described.
This document discusses acid-base disorders and interpretation of arterial blood gases (ABGs) and spirometry. It provides:
1. An overview of acid-base homeostasis and the three major methods to quantify acid-base disorders - the physiological approach, base-excess approach, and physicochemical approach.
2. The normal ranges for parameters in an ABG report like pH, PaCO2, PaO2, HCO3, and SaO2.
3. A step-wise approach to solving acid-base disorders, including assessing validity, determining if there is acidemia or alkalemia, identifying the primary disorder, assessing compensation, calculating anion gap, and calculating delta gap to
Metabolic acidosis is a condition where the blood has too much acid or too little base, resulting in a decrease in blood pH and plasma bicarbonate levels. It occurs when an acid other than carbon dioxide accumulates in the body. There are two primary types: normal anion gap metabolic acidosis and high anion gap metabolic acidosis. The body compensates for metabolic acidosis initially through respiratory hyperventilation and later through renal mechanisms such as bicarbonate retention and acid excretion. Diagnosis involves arterial blood gas analysis and identifying the underlying cause through clinical evaluation, lab tests, and anion gap calculations. Treatment focuses on correcting the underlying disorder and managing symptoms, with bicarbonate therapy reserved for
An arterial blood gas test involves puncturing an artery, usually the radial artery, to draw blood and measure acidity, oxygen and carbon dioxide levels. It can help diagnose conditions, guide treatment, and monitor ventilator management. The test measures pH, pO2, pCO2, HCO3, SaO2 and base excess. Abnormal results can indicate respiratory or metabolic acidosis or alkalosis which have distinct causes, signs, and treatments. Interpreting blood gases involves assessing oxygenation, acid-base status, and whether the disturbance is primarily respiratory or metabolic in nature.
This document discusses acid-base balance and imbalance. It defines key terms like pH, acids, and bases. The body regulates acid-base balance through buffering systems, respiratory compensation, and renal compensation. Acid-base imbalance can be diagnosed using arterial blood gases and anion gap tests. The main types of imbalance are respiratory acidosis and alkalosis from lung issues, and metabolic acidosis and alkalosis from kidney or production problems. Causes, signs, and compensation methods are described for each type.
This document discusses acid-base balance and interpreting blood gas results. It defines terms like acidosis, alkalosis, respiratory acidosis, and metabolic alkalosis. It provides normal ranges for pH, pCO2, HCO3, and base excess. Causes of different acid-base imbalances are outlined, such as respiratory acidosis resulting from alveolar hypoventilation or metabolic acidosis from ketoacidosis. The document concludes with instructions to first examine the pH to determine if acidosis or alkalosis is present, then examine pCO2 to determine if the primary problem is respiratory or metabolic based on the relationship between pH and pCO2 changes.
The document provides information on interpreting arterial blood gases (ABGs), including:
- A 6-step process for interpretation involving assessing pH, identifying the primary disorder as respiratory or metabolic, evaluating compensation, calculating anion gap, and considering differential diagnoses.
- Tables listing normal ranges for ABG components like pH, PaCO2, HCO3, and bases for common acid-base disorders.
- Explanations of key components like pH, partial pressure, base excess, bicarbonate, and their relationships in respiratory and metabolic acidosis/alkalosis.
- Causes and mechanisms of respiratory and metabolic acidosis and alkalosis are outlined.
This document discusses arterial blood gases and their interpretation. Arterial blood gases measure oxygenation, gas exchange, and acid-base balance by examining the partial pressure of oxygen (PaO2), oxygen saturation (SaO2), pH, partial pressure of carbon dioxide (PaCO2), and bicarbonate (HCO3) levels. Abnormal values can indicate hypoxemia, respiratory or metabolic acidosis/alkalosis. The kidneys and lungs work to maintain appropriate acid-base balance and oxygenation through compensation mechanisms.
Arterial Blood Gases (2) their medical and .pptxzeexhi1122
This document provides an overview of arterial blood gases (ABGs), including:
1. It defines ABGs as a test that measures oxygen, carbon dioxide, pH, and acid-base levels in arterial blood to evaluate respiratory function, oxygenation, and acid-base status.
2. Normal ABG values are listed for pH, PCO2, PO2, HCO3, and oxygen saturation.
3. The roles of the lungs and kidneys in maintaining acid-base balance through excretion of carbon dioxide and regulation of bicarbonate are described.
This document provides an overview of acid-base imbalances, including the key components of pH, PCO2, and base excess. It discusses respiratory and metabolic acid-base disorders, how the body controls acid-base balance through buffers, lungs, and kidneys, and the symptoms and treatments of common acid-base imbalances like metabolic acidosis, metabolic alkalosis, respiratory acidosis, and respiratory alkalosis.
The document discusses acid-base balance and blood pH regulation, noting that the normal pH of blood is 7.4 and key factors include bicarbonate-carbonic acid buffering, lung regulation of carbon dioxide, and kidney regulation of bicarbonate and acid excretion. Multiple choice questions are also provided to assess understanding of topics like normal bicarbonate levels, buffering systems, and hydrogen ion concentrations at different pH levels.
This document discusses acid-base imbalance and metabolic acidosis. It defines metabolic acidosis as a pH imbalance where the body has too much acid due to metabolism and not enough bicarbonate to neutralize acid effects. Metabolic acidosis is characterized by reduced serum bicarbonate, decreased arterial carbon dioxide partial pressure, and reduced blood pH below 7.35. The document outlines the pathophysiology of metabolic acidosis and discusses compensation mechanisms, arterial blood gas components, and case examples of acid-base imbalances.
PRESENT: Acid base balance hossam (1).pptMbabazi Theos
This document discusses acid-base balance and interpreting arterial blood gas results. It begins by outlining the objectives of understanding acid-base physiology and the roles of pH, PaCO2, and bicarbonate. Normal values for arterial blood gases are defined. Causes, signs, and treatments of respiratory acidosis, respiratory alkalosis, metabolic acidosis, and metabolic alkalosis are reviewed. The document explains how to interpret an arterial blood gas report using a multi-step process of analyzing pH, PaCO2, and bicarbonate levels to determine if an acid-base imbalance is respiratory or metabolically-driven. Two case examples are provided and interpreted using the outlined steps.
ABG interpret in critical care 16-1-2024Anwar Yusr
This document discusses arterial blood gas analysis and acid-base physiology. It provides indications for obtaining an ABG such as respiratory or metabolic disorders, hypoxia, shock, sepsis, and decreased cardiac output. It then defines the components of an ABG - pH, PaCO2, PaO2, HCO3, and base excess - and their normal ranges. It explains the Henderson-Hasselbalch equation and how the bicarbonate-carbonic acid buffer system regulates pH. Compensation by the respiratory and renal systems is described. Causes of metabolic acidosis and alkalosis are listed. The six step method for analyzing acid-base disorders is outlined.
This document discusses acid-base balance and disorders. It provides an overview of how the lungs and kidneys work to maintain acid-base homeostasis by regulating carbon dioxide and bicarbonate levels. It then outlines the steps for diagnosing and classifying acid-base disorders as either respiratory or metabolic in nature, and as compensated or uncompensated. Examples of respiratory alkalosis and its causes and manifestations are also provided.
This document discusses arterial blood gas analysis and acid-base physiology. It provides indications for obtaining an ABG such as respiratory or metabolic disorders, hypoxia, shock, sepsis, and decreased cardiac output. It then defines the components of an ABG - pH, PaCO2, PaO2, HCO3, and base excess - and their normal ranges. It explains the Henderson-Hasselbalch equation and how the kidneys and respiratory system work to regulate pH levels and compensate for acid-base imbalances through bicarbonate and CO2 elimination. Various acid-base disorders like respiratory acidosis, metabolic acidosis, and mixed disorders are covered.
This document provides an overview and explanation of key components of an arterial blood gas report. It discusses how values like pH, pCO2, HCO3, and pO2 are measured or calculated and their clinical significance. Normal ranges for various components are provided. The relationship between the respiratory and renal systems in maintaining acid-base balance is explained. Formulas like the Henderson-Hasselbalch equation that are used to calculate values like bicarbonate are also outlined.
Diagnosis and treatment of acid base disorders(1)aparna jayara
This document discusses the diagnosis and treatment of acid-base disorders. It begins by explaining the importance of precise pH regulation between 7.35-7.45 for cellular functions. Buffers help control free hydrogen ion concentration. Respiratory regulation controls PaCO2 through lung excretion of volatile acids, while renal regulation maintains plasma HCO3- concentration through kidney processes. Primary acid-base disorders are either metabolic, affecting HCO3-, or respiratory, affecting PaCO2. Expected compensatory responses occur but do not fully correct the primary disorder. Evaluation involves history, exam, basic labs, and arterial blood gas analysis to determine the primary disorder and characterize as acute or chronic.
This document discusses acid-base balance and interpreting arterial blood gas results. It provides an overview of how the respiratory and renal systems regulate acid-base homeostasis. It then outlines a step-wise approach to diagnosing acid-base disorders based on analyzing pH, bicarbonate, PCO2 and anion gap values. Primary disorders are distinguished as being either respiratory or metabolic based on the primary defect in bicarbonate or PCO2. Compensatory responses and whether they are appropriate are also evaluated.
An arterial blood gas test measures pH, oxygen, and carbon dioxide levels in blood from an artery. It provides information about oxygenation, ventilation, and acid-base levels. ABGs are useful for evaluating respiratory failure, severe illnesses that can cause metabolic acidosis like cardiac or liver failure, and conditions in ventilated patients or those undergoing sleep studies. Interpretation of ABG results involves considering pH, carbon dioxide, bicarbonate, and oxygen levels to determine if any acid-base imbalances exist and their underlying cause.
This document discusses acid-base balance, including defining pH, listing the main acids and bases in the body, and exploring acid-base regulation and causes of disturbance. It outlines normal blood gas values and defines terms like acidaemia, alkalaemia, standard bicarbonate, and base excess. Respiratory and metabolic regulation of acid-base balance is examined, along with treatments for respiratory and metabolic acidosis and alkalosis.
The document discusses acid-base balance and arterial blood gas analysis. It provides details on:
1) How arterial blood gas analysis assesses oxygenation, ventilation, and acid-base status to diagnose acid-base imbalances.
2) The physiology of the pH scale and how acids and bases affect hydrogen ion concentration.
3) The key buffer systems that help maintain acid-base balance, including the important bicarbonate-carbonic acid buffer.
4) How the lungs and kidneys work to regulate acid-base balance through controlling carbon dioxide and bicarbonate levels respectively.
5) The four main types of acid-base imbalances: respiratory acidosis, respiratory alkalosis, metabolic
This patient appears to be in hemorrhagic shock from his injuries sustained in the motor vehicle crash. His thready pulse and low blood pressure indicate he has lost a significant amount of blood and is hypovolemic. Immediate treatment should focus on resuscitation with intravenous fluids and blood products to restore circulating volume and improve end organ perfusion. His condition requires prompt intervention to prevent further hemodynamic instability and potential organ dysfunction or failure.
This document discusses acid-base regulation and disturbances. It defines metabolic and respiratory acidosis and alkalosis, and describes their causes, symptoms, and treatments. Mixed acid-base disturbances occur when two or more simple disorders take place simultaneously. The Henderson-Hasselbalch equation and anion gap are explained for evaluating acid-base imbalances. Blood gas analysis and considering clinical factors are important for diagnosis.
This document provides information on arterial blood gas analysis including acid-base terminology, clinical terminology criteria, the anion gap, prediction of compensatory changes, primary acid-base disorders, mixed acid-base disorders, examples of acid-base disorders, and causes of various disorders. Key points include definitions of acidemia, acidosis, alkalemia, and alkalosis. Normal values for pH, PaCO2, and HCO3 are provided. Respiratory and metabolic acidosis and alkalosis are described along with expected compensatory changes.
This document discusses the distribution and composition of body fluids. It notes that total body water is 60% of body weight, with two thirds being intracellular fluid and one third being extracellular fluid. It provides percentages and example volumes for a 70 kg person. It also discusses electrolyte concentrations in extracellular and intracellular fluids, fluid balance, measurement units, and principles of IV fluid therapy including indications, contraindications, and complications.
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This document discusses different types of wounds. It defines a wound as a breach in the continuity of tissue or skin due to external trauma. Wounds are classified as clean, contaminated, infected, or colonized based on the level of contamination. Open wounds include incised wounds from sharp objects, lacerated wounds from blunt trauma, puncture wounds from pointed objects, and penetrating or perforating wounds from objects entering and exiting the skin. Closed wounds include contusions, hematomas, and abrasions. The document provides details on characteristics and treatment approaches for each type of wound.
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This particular slides consist of- what is hypotension,what are it's causes and it's effect on body, risk factors, symptoms,complications, diagnosis and role of physiotherapy in it.
This slide is very helpful for physiotherapy students and also for other medical and healthcare students.
Here is the summary of hypotension:
Hypotension, or low blood pressure, is when the pressure of blood circulating in the body is lower than normal or expected. It's only a problem if it negatively impacts the body and causes symptoms. Normal blood pressure is usually between 90/60 mmHg and 120/80 mmHg, but pressures below 90/60 are generally considered hypotensive.
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Can Allopathy and Homeopathy Be Used Together in India.pdfDharma Homoeopathy
This article explores the potential for combining allopathy and homeopathy in India, examining the benefits, challenges, and the emerging field of integrative medicine.
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The facial nerve, also known as cranial nerve VII, is one of the 12 cranial nerves originating from the brain. It's a mixed nerve, meaning it contains both sensory and motor fibres, and it plays a crucial role in controlling various facial muscles, as well as conveying sensory information from the taste buds on the anterior two-thirds of the tongue.
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Hypertension and it's role of physiotherapy in it.Vishal kr Thakur
This particular slides consist of- what is hypertension,what are it's causes and it's effect on body, risk factors, symptoms,complications, diagnosis and role of physiotherapy in it.
This slide is very helpful for physiotherapy students and also for other medical and healthcare students.
Here is summary of hypertension -
Hypertension, also known as high blood pressure, is a serious medical condition that occurs when blood pressure in the body's arteries is consistently too high. Blood pressure is the force of blood pushing against the walls of blood vessels as the heart pumps it. Hypertension can increase the risk of heart disease, brain disease, kidney disease, and premature death.
2. Acid base balance
Regulation of H+ ion balance is similar in some ways
to the regulation of the other ions in the body, to
achieve Homeostasis.
Precise regulation of pH (7.35-7.45) is necessary for
normal cellular enzymatic reactions & for normal ionic
conc.
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3. A Hydrogen ion is single free proton release from
Hydrogen atom
Acid- molecules containing hydrogen atom that
can release H+ ion is solutions.
e.g HCl, H2CO3 (carbonic acid)
Base- it is an ion/molecule that can accept H+ ion
e.g- HCO3 – (bicarbonate ion)
Normally blood H+ ion conc. Is maintained within
tight limits around normal values of about
0.00004mE/L (40nEq/L) normal variation is about 3-
5nEq/L , because normal H+ ion conc. Is very low and
small in no. it is customary to express H+ conc. In
logarithm scale .
pH is inversely proportional to the H+ ion conc.
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4. 1
pH = log -------- = - log [H+]
[H+]
e.g normal H + ion conc. Is 40nEq/L
(0.00000004 Eq/L) :. Normal pH is
pH= -log[0.00000004]
pH= 7.4
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5. pH & H+ ion conc. In Body fluids
H + Conc. mEq/L pH
Extracellular
fluid
Arterial blood 4.0 x 10 -5 7.40
Venous blood 4.0 x 10 -5 7.35
Interstitial
fluid
4.0 x 10 -5 7.35
Intracellular
fluid
1 x 10 -3 to 4 x 10 -5 6.0 to 7.4
Urine 3 x 10 -2 to 1 x 10 -5 4.5 to 8.0
Gastric HCl 160 0.8
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6. Acid – Base Terminology
Clinical terminology Criteria
Normal pH 7.4 (7.35 to 7.45)
Acidaemia pH < 7.35
Alkalaemia pH > 7.45
Normal PaCO2 40 (35 to 45) mm of Hg
Respiratory acidosis
(failure )
PaCO2 > 45 mm of Hg & low
pH
Respiratory alkalosis
(Hyperventilation)
PaCO2 < 35 mm of Hg & high
pH
Normal HCO3 24 (22-26) mEq/L
Metabolic acidosis HCO3 < 22 mEq/L & low pH
Metabolic Alkalosis HCO3 > 26 mEq/L & high pH
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7. Basic physiology of Acid Base
regulation
1. Buffers: buffers are chemical/ any substance which
either release or accept H+
*Buffer + H+ H Buffer
*The Bicarbonate buffer system
CO2 + H2O H2CO3 H+ + HCO3-
*The phosphate buffer system
HCl + NaH2PO4 NaH2PO4 + NaCl
NaOH + NaH2PO4 Na2HPO4 + H2O
*Protein : imp intracellular buffer = H+ + Hb
HHb
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9. Metabolic acidosis
Definition – it is characterized by fall in plasma HCO3 &
fall in pH (below 7.35).
(The PaCO2 is reduced secondarily by
hyperventilation, which minimizes the fall in pH)
Pathophysiology – metabolic acidosis can result from
1. Loss of base – HCO3 via GIT or kidneys (diarrhea
NaHCO3- ion loss, proximal RTA )
2. Overproduction of metabolic acids in body
3. Ingestion / infusion of acids or potential acids
4. Failure of H+ excretion by kidney – renal tubular
acidosis or reabsorption of HCO 3- ions
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10. Metabolic acidosis is a condition in which there is too
much acid in the body fluid
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11. Causes
It can also occur when the kidneys are not removing
enough acid from the body.
There are several types of metabolic acidosis.
Diabetic acidosis develops when acidic substances,
known as ketone bodies, build up in the body. This
most often occurs with uncontrolled type 1 diabetes. It
is also called diabetic ketoacidosis (DKA)
Hyperchloremic acidosis results from excessive loss
of sodium bicarbonate from the body. This can occur
with severe diarrhea.
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12. Lactic acidosis results from a buildup of lactic acid. It
can be caused by:
1. Alcohol
2. Cancer
3. Exercising intensely
4. Liver failure
5. Medicines, such as salicylates
6. Prolonged lack of oxygen from shock, heart failure,
or severe anemia
7. Seizures
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13. Other causes of metabolic acidosis include:
1. Kidney disease (distal renal tubular acidosis and
proximal renal tubular acidosis)
2. Poisoning by aspirin, ethylene glycol (found in
antifreeze), or methanol
3. Severe dehydration
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14. Symptoms
Metabolic acidosis itself most often causes rapid
breathing.
confused or very tired.
Severe metabolic acidosis can lead to shock or death.
In some situations, metabolic acidosis can be a mild,
ongoing (chronic) condition.
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15. Exams and Tests
Arterial blood gas
Basic metabolic panel, (a group of blood tests that
measure sodium and potassium levels, kidney
function, and other chemicals and functions)
Urine pH
Urine ketones or blood ketones
Lactic acid test
Other tests may be needed to determine the cause of
the acidosis.
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16. Treatment
Treatment is aimed at the health problem causing the
acidosis.
In some cases, sodium bicarbonate (the chemical in
baking soda) may be given to reduce the acidity of the
blood
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17. Metabolic alkalosis
Increase sr. HCO3
High pH
Causes
Loss of H + from upper GIT- vomiting
Urine diuresis
Addition of Alkali- multiple BT
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18. c/ f
CNS- increase neuromuscular excitability,
paraesthesia, light head ache,
CVS- hypotension, cardiac arrhethmias
weakness., muscle cramps, postural dizziness
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19. Sr. potassium & chloride usually low
ABG
Urinary chloride
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20. Rx
IV isotonic saline + KCL/ isolyte G
Stop Treatment H2 inhibitors/ proton pump inhibitors
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21. Respiratory acidosis
Respiratory acidosis is a condition that occurs
when the lungs cannot remove all of the
carbon dioxide the body produces.
This causes body fluids, especially the blood,
to become too acidic.
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22. Cont..
is a medical emergency in which decreased ventilation
(hypoventilation) increases the concentration
of carbon dioxide in the blood and decreases the
blood's pH (a condition generally called acidosis).
Carbon dioxide is produced continuously as the body's
cells respire, and this CO2 will accumulate rapidly if
the lungs do not adequately expel it through alveolar
ventilation.
Alveolar hypoventilation thus leads to an
increased PaCO2 (a condition called hypercapnia).
The increase in PaCO2 in turn decreases the
HCO3
−/PaCO2ratio and decreases pH.
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23. pH
H+
PaCo2
Retention of Co2
Inadequate ventilation
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24. Types of respiratory acidosis
Acute respiratory acidosis, the PaCO2 is elevated
above the upper limit of the reference range (over 6.3
kPa or 45 mm Hg) with an accompanying acidemia
(pH <7.36).
Chronic respiratory acidosis, the PaCO2 is elevated
above the upper limit of the reference range, with a
normal blood pH (7.35 to 7.45) or near-normal pH
secondary to renal compensation and an elevated
serum bicarbonate (HCO3
− >30 mm Hg).
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25. Causes
Diseases of the airways - asthma and chronic
obstructive lung disease
Diseases of the chest/ crushing injury
Diseases affecting the nerves and muscles that
"signal" the lungs to inflate or deflate
Drugs that suppress breathing (including powerful
pain medicines, such as narcotics, and "downers,"
such as benzodiazepines), especially when combined
with alcohol
Severe obesity, which restricts how much the lungs
can expand
Obstructive sleep apnea
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26. Cont..
Anaestesia with too much muscle relaxant
Lung disorder- emphysema, bronchopneumonia,
chronic bronchitis
Respiratory centre depress by brain
injury/poison/alcohol
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27. Chronic respiratory acidosis
This leads to a stable situation, because the kidneys
increase body chemicals, such as bicarbonate, that
help restore the body's acid-base balance.
Acute respiratory acidosis is a condition in which
carbon dioxide builds up very quickly, before the
kidneys can return the body to a state of balance.
Some people with chronic respiratory acidosis get
acute respiratory acidosis because an illness makes
their condition worse.
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29. Exams and Tests
Arterial blood gas, which measures oxygen and carbon
dioxide levels in the blood
Basic metabolic panel
Chest x-ray
CT scan of the chest
Pulmonary function test
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30. Treatment
Adequate ventilation
Bronchodilator drugs to reverse some types of
airway obstruction
ET- mechanical ventilation
Noninvasive positive-pressure ventilation
(sometimes called CPAP or BiPAP) or a breathing
machine, if needed
Oxygen if the blood oxygen level is low
Treatment to stop smoking
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32. Respiratory alkalosis
Respiratory alkalosis is a condition marked by low
levels of carbon dioxide in the blood due to breathing
excessively.
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33. Causes
Anxiety
High grade Fever
Hyperventilation-during anesthesia AMBU with
excess muscle relaxant
High altitude, dry atmosphere.
CO poisoning
Pregnancy
Any lung disease that leads to shortness of breath can
also cause respiratory alkalosis (such as pulmonary
embolism and asthma).
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35. Exams and Tests
Arterial blood gas, which measures oxygen and carbon
dioxide levels in the blood
Basic metabolic panel
Chest x-ray
Pulmonary function test
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36. Treatment
Breathing into a paper bag -- or using a mask that
causes you to re-breathe carbon dioxide -- sometimes
helps reduce symptoms.
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