SlideShare a Scribd company logo
Acid & Base –II
Respiratory Acidosis &
Alkalosis
Acid-Base Disorders
BASE
ACID
7.35 – 7.45
pH
Acidemia
<7.35
Decreased
HCO3
-
Metabolic
Acidosis
Increased
PCO2
Respiratory
Acidosis
Alkalemia
>7.45
Increased
HCO3
-
Metabolic
Alkalosis
Decreased
PCO2
Respiratory
Alkalosis
pH = 7.35 – 7.45
PaCO2 = 38 - 42
HCO3
- = 22 - 26
Arterial
Blood Gas
Analysis
pH
<7.35 =
acidemia
>7.45 =
alkalemia
PaCO2
Elevated
Normal
Lowered
HCO3
-
Elevated
Normal
Lowered
Respiratory Acidosis
(Hypoventilation)
Respiratory
Acidosis
 CO2
Acute
(intracellular
buffering)
HCO3
- :
Increase 1mEq/L per
each 10mmHg CO2
increase
pH:
0.08 change per 10
mmHg change in
PCO2
Chronic
(renal compensation)
HCO3
- :
Increase 4mEq/L per
each 10mmHg CO2
increase
pH:
0.03 change per 10
mmHg change in
PCO2
Step 1:
pH < 7.35
Step 2:
PaCO2
>40
Step 3:
HCO3
- ??
Step 4:
pH
Respiratory Alkalosis
(Hyperventilation)
Respiratory
Alkalosis
 CO2
Acute
HCO3
- :
Decrease of 2mEq/L
per each 10mmHg
CO2 Decrease
pH:
0.08 change per 10
mmHg change in
PCO2
Chronic
HCO3
- :
Decrease of 5mEq/L
per each 10mmHg
CO2 decrease
pH:
0.08 change per 10
mmHg change in
PCO2
Step 1:
pH > 7.45
Step 2:
PaCO2
<40
Step 3:
HCO3
-
Step 4:
pH
Online resources are available

More Related Content

What's hot

Acid base imbalance disorder2020
Acid base imbalance  disorder2020Acid base imbalance  disorder2020
Acid base balance & ABG interpretation,Dept of anesthesiology,JJMMC,Davangere
Acid base balance & ABG interpretation,Dept of anesthesiology,JJMMC,DavangereAcid base balance & ABG interpretation,Dept of anesthesiology,JJMMC,Davangere
Acid base balance & ABG interpretation,Dept of anesthesiology,JJMMC,Davangere
Gopan Gopalakrisna Pillai
 
Interpretation of the Arterial Blood Gas analysis
Interpretation of the Arterial Blood Gas analysisInterpretation of the Arterial Blood Gas analysis
Interpretation of the Arterial Blood Gas analysisVishal Golay
 
Acid base disorders
Acid base disordersAcid base disorders
Acid base disorders
Mohamed Elbhnasawy
 
Vent abg arterial_bloodgases
Vent abg arterial_bloodgasesVent abg arterial_bloodgases
Vent abg arterial_bloodgaseswanted1361
 
ABGs interpritation and approach.ppt
ABGs interpritation and approach.pptABGs interpritation and approach.ppt
ABGs interpritation and approach.ppt
DIPAK PATADE
 
Nk abg interpretation mmc 2017
Nk abg interpretation mmc 2017Nk abg interpretation mmc 2017
Nk abg interpretation mmc 2017
Narasimhan Krishnan
 
Understanding ABGs and spirometry
Understanding ABGs and spirometryUnderstanding ABGs and spirometry
Understanding ABGs and spirometryShivashankar S
 
Acid Base Balance
Acid Base BalanceAcid Base Balance
Acid Base Balance
Ashok Katta
 
ABG for ICU Clinical PhARMACIST
ABG for ICU Clinical PhARMACIST ABG for ICU Clinical PhARMACIST
ABG for ICU Clinical PhARMACIST Shaza Ali Attwan
 
Arterial blood gases
Arterial blood gasesArterial blood gases
Arterial blood gases
mostafa hegazy
 
ABG lecture
ABG lectureABG lecture
ABG lecture
Alric Mondragon
 
Quick interpretation of blood gases
Quick interpretation of blood gasesQuick interpretation of blood gases
Quick interpretation of blood gasesKIMS
 
Diagnosis and treatment of acid base disorders(1)
Diagnosis and treatment of acid base disorders(1)Diagnosis and treatment of acid base disorders(1)
Diagnosis and treatment of acid base disorders(1)
aparna jayara
 
Interpreting Blood Gases, Practical and easy approach
Interpreting Blood Gases, Practical and easy approachInterpreting Blood Gases, Practical and easy approach
Interpreting Blood Gases, Practical and easy approach
Muhammad Asim Rana
 
ARTERIAL BLOOD GAS INTERPRETATION
ARTERIAL BLOOD GAS INTERPRETATIONARTERIAL BLOOD GAS INTERPRETATION
ARTERIAL BLOOD GAS INTERPRETATION
DJ CrissCross
 
Basic ABG notes
Basic ABG notesBasic ABG notes
Basic ABG notes
Kerolus Shehata
 
Acid – Base Disorders
Acid – Base DisordersAcid – Base Disorders
Acid – Base Disorders
Muhammad Eimaduddin
 

What's hot (20)

Acid base imbalance disorder2020
Acid base imbalance  disorder2020Acid base imbalance  disorder2020
Acid base imbalance disorder2020
 
Acid base balance & ABG interpretation,Dept of anesthesiology,JJMMC,Davangere
Acid base balance & ABG interpretation,Dept of anesthesiology,JJMMC,DavangereAcid base balance & ABG interpretation,Dept of anesthesiology,JJMMC,Davangere
Acid base balance & ABG interpretation,Dept of anesthesiology,JJMMC,Davangere
 
Interpretation of the Arterial Blood Gas analysis
Interpretation of the Arterial Blood Gas analysisInterpretation of the Arterial Blood Gas analysis
Interpretation of the Arterial Blood Gas analysis
 
Acid Base Status
Acid Base StatusAcid Base Status
Acid Base Status
 
Acid base disorders
Acid base disordersAcid base disorders
Acid base disorders
 
Vent abg arterial_bloodgases
Vent abg arterial_bloodgasesVent abg arterial_bloodgases
Vent abg arterial_bloodgases
 
ABGs interpritation and approach.ppt
ABGs interpritation and approach.pptABGs interpritation and approach.ppt
ABGs interpritation and approach.ppt
 
Nk abg interpretation mmc 2017
Nk abg interpretation mmc 2017Nk abg interpretation mmc 2017
Nk abg interpretation mmc 2017
 
Understanding ABGs and spirometry
Understanding ABGs and spirometryUnderstanding ABGs and spirometry
Understanding ABGs and spirometry
 
ABG APPROACH
ABG APPROACHABG APPROACH
ABG APPROACH
 
Acid Base Balance
Acid Base BalanceAcid Base Balance
Acid Base Balance
 
ABG for ICU Clinical PhARMACIST
ABG for ICU Clinical PhARMACIST ABG for ICU Clinical PhARMACIST
ABG for ICU Clinical PhARMACIST
 
Arterial blood gases
Arterial blood gasesArterial blood gases
Arterial blood gases
 
ABG lecture
ABG lectureABG lecture
ABG lecture
 
Quick interpretation of blood gases
Quick interpretation of blood gasesQuick interpretation of blood gases
Quick interpretation of blood gases
 
Diagnosis and treatment of acid base disorders(1)
Diagnosis and treatment of acid base disorders(1)Diagnosis and treatment of acid base disorders(1)
Diagnosis and treatment of acid base disorders(1)
 
Interpreting Blood Gases, Practical and easy approach
Interpreting Blood Gases, Practical and easy approachInterpreting Blood Gases, Practical and easy approach
Interpreting Blood Gases, Practical and easy approach
 
ARTERIAL BLOOD GAS INTERPRETATION
ARTERIAL BLOOD GAS INTERPRETATIONARTERIAL BLOOD GAS INTERPRETATION
ARTERIAL BLOOD GAS INTERPRETATION
 
Basic ABG notes
Basic ABG notesBasic ABG notes
Basic ABG notes
 
Acid – Base Disorders
Acid – Base DisordersAcid – Base Disorders
Acid – Base Disorders
 

Similar to Acid-Base: Basics of Respiratory Disturbance

Abg by dr girish
Abg by dr girishAbg by dr girish
Abg by dr girish
Girish jain
 
balance acido base.pptx
balance acido base.pptxbalance acido base.pptx
balance acido base.pptx
javier
 
Interpretation of arterial blood gases:Traditional versus Modern
Interpretation of arterial  blood gases:Traditional versus Modern Interpretation of arterial  blood gases:Traditional versus Modern
Interpretation of arterial blood gases:Traditional versus Modern Gamal Agmy
 
Arterial Blood Gas (ABG) analysis
Arterial Blood Gas (ABG) analysisArterial Blood Gas (ABG) analysis
Arterial Blood Gas (ABG) analysis
Abdullah Ansari
 
abg-151118185050-lva1-app68911111111.pdf
abg-151118185050-lva1-app68911111111.pdfabg-151118185050-lva1-app68911111111.pdf
abg-151118185050-lva1-app68911111111.pdf
DivyanshJoshi39
 
Arterial blood gas analysis 1
Arterial blood gas analysis 1Arterial blood gas analysis 1
Arterial blood gas analysis 1
Ajay Kurian
 
ABG interpret in critical care 16-1-2024
ABG interpret in critical care 16-1-2024ABG interpret in critical care 16-1-2024
ABG interpret in critical care 16-1-2024
Anwar Yusr
 
ABG Analysis
ABG Analysis ABG Analysis
Acid base and ABG interpretation in ICU
Acid base and ABG interpretation in  ICUAcid base and ABG interpretation in  ICU
Acid base and ABG interpretation in ICU
Anwar Yusr
 
Abg
AbgAbg
Acid base balance
Acid base balanceAcid base balance
Acid base balance
DeepthiFernandes2
 
ABG Analysis & Interpretation
ABG Analysis & InterpretationABG Analysis & Interpretation
PRESENT: Acid base balance hossam (1).ppt
PRESENT: Acid base balance hossam (1).pptPRESENT: Acid base balance hossam (1).ppt
PRESENT: Acid base balance hossam (1).ppt
Mbabazi Theos
 
acido base jeringa.pptx
acido base jeringa.pptxacido base jeringa.pptx
acido base jeringa.pptx
javier
 
Abc of abg richa j
Abc of abg richa jAbc of abg richa j
Abc of abg richa j
Dr Praman Kushwah
 
Blood Gas Analysis
Blood Gas Analysis		Blood Gas Analysis
Blood Gas Analysis Khalid
 
Cp 50 10-18 2 blood gas and acid base balance
Cp 50 10-18 2  blood gas and acid base balanceCp 50 10-18 2  blood gas and acid base balance
Cp 50 10-18 2 blood gas and acid base balanceApichaya Claimon
 
Cp 50 10-18 2 blood gas and acid base balance
Cp 50 10-18 2  blood gas and acid base balanceCp 50 10-18 2  blood gas and acid base balance
Cp 50 10-18 2 blood gas and acid base balanceApichaya Claimon
 
Ncm Ppt6
Ncm Ppt6Ncm Ppt6
Ncm Ppt6
shenell delfin
 

Similar to Acid-Base: Basics of Respiratory Disturbance (20)

Abg by dr girish
Abg by dr girishAbg by dr girish
Abg by dr girish
 
balance acido base.pptx
balance acido base.pptxbalance acido base.pptx
balance acido base.pptx
 
ABG-1.ppt
ABG-1.pptABG-1.ppt
ABG-1.ppt
 
Interpretation of arterial blood gases:Traditional versus Modern
Interpretation of arterial  blood gases:Traditional versus Modern Interpretation of arterial  blood gases:Traditional versus Modern
Interpretation of arterial blood gases:Traditional versus Modern
 
Arterial Blood Gas (ABG) analysis
Arterial Blood Gas (ABG) analysisArterial Blood Gas (ABG) analysis
Arterial Blood Gas (ABG) analysis
 
abg-151118185050-lva1-app68911111111.pdf
abg-151118185050-lva1-app68911111111.pdfabg-151118185050-lva1-app68911111111.pdf
abg-151118185050-lva1-app68911111111.pdf
 
Arterial blood gas analysis 1
Arterial blood gas analysis 1Arterial blood gas analysis 1
Arterial blood gas analysis 1
 
ABG interpret in critical care 16-1-2024
ABG interpret in critical care 16-1-2024ABG interpret in critical care 16-1-2024
ABG interpret in critical care 16-1-2024
 
ABG Analysis
ABG Analysis ABG Analysis
ABG Analysis
 
Acid base and ABG interpretation in ICU
Acid base and ABG interpretation in  ICUAcid base and ABG interpretation in  ICU
Acid base and ABG interpretation in ICU
 
Abg
AbgAbg
Abg
 
Acid base balance
Acid base balanceAcid base balance
Acid base balance
 
ABG Analysis & Interpretation
ABG Analysis & InterpretationABG Analysis & Interpretation
ABG Analysis & Interpretation
 
PRESENT: Acid base balance hossam (1).ppt
PRESENT: Acid base balance hossam (1).pptPRESENT: Acid base balance hossam (1).ppt
PRESENT: Acid base balance hossam (1).ppt
 
acido base jeringa.pptx
acido base jeringa.pptxacido base jeringa.pptx
acido base jeringa.pptx
 
Abc of abg richa j
Abc of abg richa jAbc of abg richa j
Abc of abg richa j
 
Blood Gas Analysis
Blood Gas Analysis		Blood Gas Analysis
Blood Gas Analysis
 
Cp 50 10-18 2 blood gas and acid base balance
Cp 50 10-18 2  blood gas and acid base balanceCp 50 10-18 2  blood gas and acid base balance
Cp 50 10-18 2 blood gas and acid base balance
 
Cp 50 10-18 2 blood gas and acid base balance
Cp 50 10-18 2  blood gas and acid base balanceCp 50 10-18 2  blood gas and acid base balance
Cp 50 10-18 2 blood gas and acid base balance
 
Ncm Ppt6
Ncm Ppt6Ncm Ppt6
Ncm Ppt6
 

More from AnaMariaCrawfordMDMS

Arrhythmias & Arrest
Arrhythmias & ArrestArrhythmias & Arrest
Arrhythmias & Arrest
AnaMariaCrawfordMDMS
 
Anemia and Blood Transfusions
Anemia and Blood TransfusionsAnemia and Blood Transfusions
Anemia and Blood Transfusions
AnaMariaCrawfordMDMS
 
Sepsis
SepsisSepsis
Weaning & Discontinuation of Mechanical Ventilation
Weaning & Discontinuation of Mechanical VentilationWeaning & Discontinuation of Mechanical Ventilation
Weaning & Discontinuation of Mechanical Ventilation
AnaMariaCrawfordMDMS
 
Respiratory failure
Respiratory failureRespiratory failure
Respiratory failure
AnaMariaCrawfordMDMS
 
Presenting ICU Patients on Rounds
Presenting ICU Patients on RoundsPresenting ICU Patients on Rounds
Presenting ICU Patients on Rounds
AnaMariaCrawfordMDMS
 
Standard Patient Monitors
Standard Patient MonitorsStandard Patient Monitors
Standard Patient Monitors
AnaMariaCrawfordMDMS
 
Minimum Standards for ICU
Minimum Standards for ICUMinimum Standards for ICU
Minimum Standards for ICU
AnaMariaCrawfordMDMS
 
Infection Prevention and Control in the ICU
Infection Prevention and Control in the ICUInfection Prevention and Control in the ICU
Infection Prevention and Control in the ICU
AnaMariaCrawfordMDMS
 
Basic Modes of Mechanical Ventilation
Basic Modes of Mechanical VentilationBasic Modes of Mechanical Ventilation
Basic Modes of Mechanical Ventilation
AnaMariaCrawfordMDMS
 
Indications for Intubation and Mechanical Ventilation
Indications for Intubation and Mechanical VentilationIndications for Intubation and Mechanical Ventilation
Indications for Intubation and Mechanical Ventilation
AnaMariaCrawfordMDMS
 
Daily ICU Care
Daily ICU CareDaily ICU Care
Daily ICU Care
AnaMariaCrawfordMDMS
 
Mechanical Ventilation for ARDS
Mechanical Ventilation for ARDSMechanical Ventilation for ARDS
Mechanical Ventilation for ARDS
AnaMariaCrawfordMDMS
 
ARDS
ARDSARDS
ARDS
ARDSARDS
ICU - Admission, Triage, Discharge
ICU - Admission, Triage, DischargeICU - Admission, Triage, Discharge
ICU - Admission, Triage, Discharge
AnaMariaCrawfordMDMS
 

More from AnaMariaCrawfordMDMS (16)

Arrhythmias & Arrest
Arrhythmias & ArrestArrhythmias & Arrest
Arrhythmias & Arrest
 
Anemia and Blood Transfusions
Anemia and Blood TransfusionsAnemia and Blood Transfusions
Anemia and Blood Transfusions
 
Sepsis
SepsisSepsis
Sepsis
 
Weaning & Discontinuation of Mechanical Ventilation
Weaning & Discontinuation of Mechanical VentilationWeaning & Discontinuation of Mechanical Ventilation
Weaning & Discontinuation of Mechanical Ventilation
 
Respiratory failure
Respiratory failureRespiratory failure
Respiratory failure
 
Presenting ICU Patients on Rounds
Presenting ICU Patients on RoundsPresenting ICU Patients on Rounds
Presenting ICU Patients on Rounds
 
Standard Patient Monitors
Standard Patient MonitorsStandard Patient Monitors
Standard Patient Monitors
 
Minimum Standards for ICU
Minimum Standards for ICUMinimum Standards for ICU
Minimum Standards for ICU
 
Infection Prevention and Control in the ICU
Infection Prevention and Control in the ICUInfection Prevention and Control in the ICU
Infection Prevention and Control in the ICU
 
Basic Modes of Mechanical Ventilation
Basic Modes of Mechanical VentilationBasic Modes of Mechanical Ventilation
Basic Modes of Mechanical Ventilation
 
Indications for Intubation and Mechanical Ventilation
Indications for Intubation and Mechanical VentilationIndications for Intubation and Mechanical Ventilation
Indications for Intubation and Mechanical Ventilation
 
Daily ICU Care
Daily ICU CareDaily ICU Care
Daily ICU Care
 
Mechanical Ventilation for ARDS
Mechanical Ventilation for ARDSMechanical Ventilation for ARDS
Mechanical Ventilation for ARDS
 
ARDS
ARDSARDS
ARDS
 
ARDS
ARDSARDS
ARDS
 
ICU - Admission, Triage, Discharge
ICU - Admission, Triage, DischargeICU - Admission, Triage, Discharge
ICU - Admission, Triage, Discharge
 

Recently uploaded

Alcohol_Dr. Jeenal Mistry MD Pharmacology.pdf
Alcohol_Dr. Jeenal Mistry MD Pharmacology.pdfAlcohol_Dr. Jeenal Mistry MD Pharmacology.pdf
Alcohol_Dr. Jeenal Mistry MD Pharmacology.pdf
Dr Jeenal Mistry
 
THOA 2.ppt Human Organ Transplantation Act
THOA 2.ppt Human Organ Transplantation ActTHOA 2.ppt Human Organ Transplantation Act
THOA 2.ppt Human Organ Transplantation Act
DrSathishMS1
 
Antiulcer drugs Advance Pharmacology .pptx
Antiulcer drugs Advance Pharmacology .pptxAntiulcer drugs Advance Pharmacology .pptx
Antiulcer drugs Advance Pharmacology .pptx
Rohit chaurpagar
 
Physiology of Chemical Sensation of smell.pdf
Physiology of Chemical Sensation of smell.pdfPhysiology of Chemical Sensation of smell.pdf
Physiology of Chemical Sensation of smell.pdf
MedicoseAcademics
 
24 Upakrama.pptx class ppt useful in all
24 Upakrama.pptx class ppt useful in all24 Upakrama.pptx class ppt useful in all
24 Upakrama.pptx class ppt useful in all
DrSathishMS1
 
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...
kevinkariuki227
 
BRACHYTHERAPY OVERVIEW AND APPLICATORS
BRACHYTHERAPY OVERVIEW  AND  APPLICATORSBRACHYTHERAPY OVERVIEW  AND  APPLICATORS
BRACHYTHERAPY OVERVIEW AND APPLICATORS
Krishan Murari
 
Flu Vaccine Alert in Bangalore Karnataka
Flu Vaccine Alert in Bangalore KarnatakaFlu Vaccine Alert in Bangalore Karnataka
Flu Vaccine Alert in Bangalore Karnataka
addon Scans
 
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists  Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists
Saeid Safari
 
KDIGO 2024 guidelines for diabetologists
KDIGO 2024 guidelines for diabetologistsKDIGO 2024 guidelines for diabetologists
KDIGO 2024 guidelines for diabetologists
د.محمود نجيب
 
Evaluation of antidepressant activity of clitoris ternatea in animals
Evaluation of antidepressant activity of clitoris ternatea in animalsEvaluation of antidepressant activity of clitoris ternatea in animals
Evaluation of antidepressant activity of clitoris ternatea in animals
Shweta
 
Hemodialysis: Chapter 3, Dialysis Water Unit - Dr.Gawad
Hemodialysis: Chapter 3, Dialysis Water Unit - Dr.GawadHemodialysis: Chapter 3, Dialysis Water Unit - Dr.Gawad
Hemodialysis: Chapter 3, Dialysis Water Unit - Dr.Gawad
NephroTube - Dr.Gawad
 
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?Report Back from SGO 2024: What’s the Latest in Cervical Cancer?
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?
bkling
 
Superficial & Deep Fascia of the NECK.pptx
Superficial & Deep Fascia of the NECK.pptxSuperficial & Deep Fascia of the NECK.pptx
Superficial & Deep Fascia of the NECK.pptx
Dr. Rabia Inam Gandapore
 
MANAGEMENT OF ATRIOVENTRICULAR CONDUCTION BLOCK.pdf
MANAGEMENT OF ATRIOVENTRICULAR CONDUCTION BLOCK.pdfMANAGEMENT OF ATRIOVENTRICULAR CONDUCTION BLOCK.pdf
MANAGEMENT OF ATRIOVENTRICULAR CONDUCTION BLOCK.pdf
Jim Jacob Roy
 
ANATOMY AND PHYSIOLOGY OF URINARY SYSTEM.pptx
ANATOMY AND PHYSIOLOGY OF URINARY SYSTEM.pptxANATOMY AND PHYSIOLOGY OF URINARY SYSTEM.pptx
ANATOMY AND PHYSIOLOGY OF URINARY SYSTEM.pptx
Swetaba Besh
 
Prix Galien International 2024 Forum Program
Prix Galien International 2024 Forum ProgramPrix Galien International 2024 Forum Program
Prix Galien International 2024 Forum Program
Levi Shapiro
 
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTSARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
Dr. Vinay Pareek
 
Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...
Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...
Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...
Oleg Kshivets
 
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...
VarunMahajani
 

Recently uploaded (20)

Alcohol_Dr. Jeenal Mistry MD Pharmacology.pdf
Alcohol_Dr. Jeenal Mistry MD Pharmacology.pdfAlcohol_Dr. Jeenal Mistry MD Pharmacology.pdf
Alcohol_Dr. Jeenal Mistry MD Pharmacology.pdf
 
THOA 2.ppt Human Organ Transplantation Act
THOA 2.ppt Human Organ Transplantation ActTHOA 2.ppt Human Organ Transplantation Act
THOA 2.ppt Human Organ Transplantation Act
 
Antiulcer drugs Advance Pharmacology .pptx
Antiulcer drugs Advance Pharmacology .pptxAntiulcer drugs Advance Pharmacology .pptx
Antiulcer drugs Advance Pharmacology .pptx
 
Physiology of Chemical Sensation of smell.pdf
Physiology of Chemical Sensation of smell.pdfPhysiology of Chemical Sensation of smell.pdf
Physiology of Chemical Sensation of smell.pdf
 
24 Upakrama.pptx class ppt useful in all
24 Upakrama.pptx class ppt useful in all24 Upakrama.pptx class ppt useful in all
24 Upakrama.pptx class ppt useful in all
 
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...
 
BRACHYTHERAPY OVERVIEW AND APPLICATORS
BRACHYTHERAPY OVERVIEW  AND  APPLICATORSBRACHYTHERAPY OVERVIEW  AND  APPLICATORS
BRACHYTHERAPY OVERVIEW AND APPLICATORS
 
Flu Vaccine Alert in Bangalore Karnataka
Flu Vaccine Alert in Bangalore KarnatakaFlu Vaccine Alert in Bangalore Karnataka
Flu Vaccine Alert in Bangalore Karnataka
 
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists  Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists
 
KDIGO 2024 guidelines for diabetologists
KDIGO 2024 guidelines for diabetologistsKDIGO 2024 guidelines for diabetologists
KDIGO 2024 guidelines for diabetologists
 
Evaluation of antidepressant activity of clitoris ternatea in animals
Evaluation of antidepressant activity of clitoris ternatea in animalsEvaluation of antidepressant activity of clitoris ternatea in animals
Evaluation of antidepressant activity of clitoris ternatea in animals
 
Hemodialysis: Chapter 3, Dialysis Water Unit - Dr.Gawad
Hemodialysis: Chapter 3, Dialysis Water Unit - Dr.GawadHemodialysis: Chapter 3, Dialysis Water Unit - Dr.Gawad
Hemodialysis: Chapter 3, Dialysis Water Unit - Dr.Gawad
 
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?Report Back from SGO 2024: What’s the Latest in Cervical Cancer?
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?
 
Superficial & Deep Fascia of the NECK.pptx
Superficial & Deep Fascia of the NECK.pptxSuperficial & Deep Fascia of the NECK.pptx
Superficial & Deep Fascia of the NECK.pptx
 
MANAGEMENT OF ATRIOVENTRICULAR CONDUCTION BLOCK.pdf
MANAGEMENT OF ATRIOVENTRICULAR CONDUCTION BLOCK.pdfMANAGEMENT OF ATRIOVENTRICULAR CONDUCTION BLOCK.pdf
MANAGEMENT OF ATRIOVENTRICULAR CONDUCTION BLOCK.pdf
 
ANATOMY AND PHYSIOLOGY OF URINARY SYSTEM.pptx
ANATOMY AND PHYSIOLOGY OF URINARY SYSTEM.pptxANATOMY AND PHYSIOLOGY OF URINARY SYSTEM.pptx
ANATOMY AND PHYSIOLOGY OF URINARY SYSTEM.pptx
 
Prix Galien International 2024 Forum Program
Prix Galien International 2024 Forum ProgramPrix Galien International 2024 Forum Program
Prix Galien International 2024 Forum Program
 
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTSARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
 
Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...
Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...
Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...
 
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...
 

Acid-Base: Basics of Respiratory Disturbance

Editor's Notes

  1. Arterial blood gas analysis can be used to determine pH, the partial pressure of carbon dioxide and the concentration of serum bicarbonate. These measurements help providers determine the cause of acid-base derangements so that appropriate clinical interventions can be initiated.
  2. Normal physiologic pH ranges from 7.35 to 7.45. Normal partial pressure of carbon dioxide ranges from 38-42mmHg. Normal serum Bicarbonate range is from 22-26 mEq/L. Acidemia can occur from too little bicarbonate or too much carbon dioxide. Alkalemia can occur from too little carbon dioxide or too much bicarbonate. When the process is driven by carbon dioxide it is termed – “respiratory”. When the process is driven by bicarbonate, it is termed – “metabolic”.
  3. The first step in interpreting the arterial blood gas analysis, or ABG, is determining the value of the pH. This will determine if the patient has an acidemia or alkalemia. The second step is to determine the value of the partial pressure of carbon dioxide. Too much carbon dioxide leads to acidosis while decreased levels of carbon dioxide lead to an alkalosis. Third, providers should determine the value of the bicarbonate. Bicarbonate is a buffer and will be used to compensate for an acute acidotic process. Over time, in more chronic states, the kidneys will begin to retain more bicarbonate in an attempt to compensate for an underlying acidosis.
  4. Acidosis occurs from too much carbon dioxide or too little bicarbonate. When the process is driven by carbon dioxide it is termed – “respiratory”. Respiratory acidosis, then, is caused by the retention of carbon dioxide. Following a stepwise approach, if the pH is less than 7.35 there is an acidosis and if the PaCO2 is elevated, then there is a respiratory acidosis. In the acute phase, bicarbonate can shift out of cells to compensate for an acidosis, however this compensation is limited. Renal compensation, through the retention of bicarbonate, starts within 12 hours. It has its maximal effect at 3-4 days. Determining whether the process is acute or chronic can be done by looking at the changes in pH and bicarbonate as compared to the carbon dioxide. For an acute respiratory acidosis, the bicarbonate will increase 1 mEq/L for every 10mmHg change in carbon dioxide and the pH will decrease by 0.08. Examples of acute respiratory acidoses include oversedation, airway obstruction or apnea. For a chronic respiratory acidosis, the bicarbonate will increase by 4 mEq/L for every 10mmHg rise in carbon dioxide and the pH will decrease by 0.03. COPD is an example of a chronic respiratory acidosis.
  5. If the first step reveals a pH > 7.45, an alkalemia is present. Alkalemia can occur from too little carbon dioxide or too much bicarbonate. If the second step reveals a PaCO2 < 40, a respiratory alkalosis is present. Respiratory alkalosis occurs from hyperventilation. Determining whether the process is acute or chronic can be done by evaluating the pH and bicarbonate. If the process is acute, the bicarbonate will decrease by 2 mEq/L for each 10mmHg decrease in CO2. The pH will increase by 0.08. Examples of acute respiratory alkalosis include states that result in tachypnea such as early asthma exacerbations or anxiety. If a respiratory alkalosis is chronic, the bicarbonate will decrease by 5 mEq/L for every 10mmHg decrease in carbon dioxide and the pH will increase by 0.08. CNS injury, pulmonary embolus and certain medications or toxins can cause chronic hyperventilation and respiratory alkalosis. It is also possible to cause a respiratory alkalosis by over-ventilating patients who are intubated and mechanically ventilated.
  6. Learners should know that there are many websites and smartphone applications that can assist providers with calculations and interpretations of arterial blood gases.