ECG
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Electrocardiogram. It is a medical device which is used to measure and monitor the rate and regularity of heartbeat.
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Electrocardiograph(ecg)
An ECG is a test that records the electrical activity of the heart over time using skin electrodes. It is useful for diagnosing cardiac arrhythmias, electrolyte disturbances, conduction abnormalities, and screening for ischemic heart disease. The electrical impulse in a normal heartbeat begins in the sinoatrial node and travels through the atria and ventricles via specialized conduction pathways. An ECG machine records the heart's electrical activity as a trace on moving paper, displaying voltage on the y-axis and time on the x-axis. Proper reporting of an ECG includes accurately labeling the strip and describing the heart rate, rhythms, intervals, wave patterns, and any abnormalities.
Basic of electrocardiograph
Electrocardiography records the heart's electrical activity over time using electrodes on the skin. One ECG cycle contains a P wave for atrial depolarization, QRS complex for ventricular depolarization, and T wave for ventricular repolarization. ECG leads include bipolar limb leads using Einthoven's triangle and law, augmented unipolar limb leads, and chest leads to detect the heart's electrical signals from different angles.
ECG ARTIFACTS AND PITFALLS
This document discusses ECG artifacts and pitfalls in interpretation. It outlines 10 commandments for proper ECG acquisition to avoid artifacts. Artifacts are classified as internal (physiological) or external (non-physiological). Common artifacts include limb and precordial lead reversals, tremor artifact, computer averaging errors, and electromagnetic interference. Differentiating artifacts from true arrhythmias like ventricular tachycardia is important. Characteristics that can help differentiate include absence of hemodynamic effects, normal complexes within the artifact, and association with movement. Proper electrode placement and equipment grounding can help reduce artifact occurrence.
Ecg made easy
This document provides instructions for performing and interpreting a 12-lead electrocardiogram (ECG). It describes the proper procedure for electrode placement on the limbs and chest to produce the 12 leads. It also covers evaluating the ECG for correct lead placement, artifacts, and basic abnormalities like arrhythmias, ectopic beats, and critical values such as ST elevation. The overall goal is to produce high quality ECGs and correctly interpret basic findings.
Basics of ecg
This document provides an overview of electrocardiography (ECG) basics for technicians. It discusses the heart's conduction system and how ECGs work to record electrical activity. The 12 standard ECG leads and their placements are described. Key aspects of normal ECG waveforms and intervals like P waves, QRS complex, T waves, and QT interval are explained. Common abnormalities that can cause changes in axis or abnormal complexes are also summarized. The document concludes with tips on interpreting ECGs and the important aspects to include in an ECG report.
Ecg ppt
Electrocardiography (ECG or EKG) is the process of recording the electrical activity of the heart over time using electrodes placed on a patient's body. These electrodes detect tiny electrical changes on the skin arising from the heart muscle during each heartbeat. The ECG traces the heart's electrical activity through the various conduction pathways and different deflections in the tracing correspond to atrial and ventricular depolarization and repolarization. A normal ECG tracing shows the P wave, QRS complex and T wave and time intervals can provide information on heart rate and conduction delays.
Electrocardiogram
The document provides information about electrocardiograms (ECGs), including a brief history of ECG development, basic cardiac anatomy and the heart's conducting system, components of the ECG waveform, electrode placements, how to read ECG paper, and cardiac axis. It explains that the ECG is a tool that records electrical activity of the heart to assess cardiac function and identify abnormalities, traces its development back to Willem Einthoven in the 1890s, and provides details on heart structures involved in the cardiac cycle and what different parts of the ECG represent.
Basics of-ekg-1219758859115951-9
This document provides an overview of electrocardiograms (EKGs). It discusses the history of EKG development from early discoveries in the 1800s to modern use. Key aspects of EKG interpretation are explained, including the shape of normal EKG waves like the P, QRS, and T waves. Common cardiac rhythms like normal sinus rhythm, sinus bradycardia, and sinus tachycardia are demonstrated and described. Ten rules for interpreting a normal EKG are also presented to help understand what is considered normal.
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Electrocardiograph(ecg)
An ECG is a test that records the electrical activity of the heart over time using skin electrodes. It is useful for diagnosing cardiac arrhythmias, electrolyte disturbances, conduction abnormalities, and screening for ischemic heart disease. The electrical impulse in a normal heartbeat begins in the sinoatrial node and travels through the atria and ventricles via specialized conduction pathways. An ECG machine records the heart's electrical activity as a trace on moving paper, displaying voltage on the y-axis and time on the x-axis. Proper reporting of an ECG includes accurately labeling the strip and describing the heart rate, rhythms, intervals, wave patterns, and any abnormalities.
Basic of electrocardiograph
Electrocardiography records the heart's electrical activity over time using electrodes on the skin. One ECG cycle contains a P wave for atrial depolarization, QRS complex for ventricular depolarization, and T wave for ventricular repolarization. ECG leads include bipolar limb leads using Einthoven's triangle and law, augmented unipolar limb leads, and chest leads to detect the heart's electrical signals from different angles.
ECG ARTIFACTS AND PITFALLS
This document discusses ECG artifacts and pitfalls in interpretation. It outlines 10 commandments for proper ECG acquisition to avoid artifacts. Artifacts are classified as internal (physiological) or external (non-physiological). Common artifacts include limb and precordial lead reversals, tremor artifact, computer averaging errors, and electromagnetic interference. Differentiating artifacts from true arrhythmias like ventricular tachycardia is important. Characteristics that can help differentiate include absence of hemodynamic effects, normal complexes within the artifact, and association with movement. Proper electrode placement and equipment grounding can help reduce artifact occurrence.
Ecg made easy
This document provides instructions for performing and interpreting a 12-lead electrocardiogram (ECG). It describes the proper procedure for electrode placement on the limbs and chest to produce the 12 leads. It also covers evaluating the ECG for correct lead placement, artifacts, and basic abnormalities like arrhythmias, ectopic beats, and critical values such as ST elevation. The overall goal is to produce high quality ECGs and correctly interpret basic findings.
Basics of ecg
This document provides an overview of electrocardiography (ECG) basics for technicians. It discusses the heart's conduction system and how ECGs work to record electrical activity. The 12 standard ECG leads and their placements are described. Key aspects of normal ECG waveforms and intervals like P waves, QRS complex, T waves, and QT interval are explained. Common abnormalities that can cause changes in axis or abnormal complexes are also summarized. The document concludes with tips on interpreting ECGs and the important aspects to include in an ECG report.
Ecg ppt
Electrocardiography (ECG or EKG) is the process of recording the electrical activity of the heart over time using electrodes placed on a patient's body. These electrodes detect tiny electrical changes on the skin arising from the heart muscle during each heartbeat. The ECG traces the heart's electrical activity through the various conduction pathways and different deflections in the tracing correspond to atrial and ventricular depolarization and repolarization. A normal ECG tracing shows the P wave, QRS complex and T wave and time intervals can provide information on heart rate and conduction delays.
Electrocardiogram
The document provides information about electrocardiograms (ECGs), including a brief history of ECG development, basic cardiac anatomy and the heart's conducting system, components of the ECG waveform, electrode placements, how to read ECG paper, and cardiac axis. It explains that the ECG is a tool that records electrical activity of the heart to assess cardiac function and identify abnormalities, traces its development back to Willem Einthoven in the 1890s, and provides details on heart structures involved in the cardiac cycle and what different parts of the ECG represent.
Basics of-ekg-1219758859115951-9
This document provides an overview of electrocardiograms (EKGs). It discusses the history of EKG development from early discoveries in the 1800s to modern use. Key aspects of EKG interpretation are explained, including the shape of normal EKG waves like the P, QRS, and T waves. Common cardiac rhythms like normal sinus rhythm, sinus bradycardia, and sinus tachycardia are demonstrated and described. Ten rules for interpreting a normal EKG are also presented to help understand what is considered normal.
Procedure of Recording ECG
It's procedure of recording ECG for Nursing Students.
It is helpful content for GNM 2nd Year & B.Sc.N. 2nd Year Students.
Electrocardiogram
This document discusses electrocardiography (ECG), including:
1. ECG records electrical potentials during the cardiac cycle using leads attached to the limbs and chest.
2. There are standard bipolar limb leads and augmented unipolar leads, as well as 6 chest leads.
3. The ECG can be used to analyze heart rate, rhythm, conduction, chamber size, muscle thickness and detect abnormalities.
Basics of ECG
This document provides an overview of electrocardiography (ECG or EKG):
- The ECG is essential for diagnosing cardiac rhythm abnormalities and chest pain, and guides treatment like thrombolysis for heart attacks.
- The history of ECG development is traced from early experiments in the 1800s to William Einthoven's invention of the first clinical ECG machine in the early 1900s.
- A normal ECG shows a regular rhythm between 60-100 beats per minute, visible P waves before each QRS complex, and normal durations for the P-R interval, QRS complex, and T wave.
Ecg 2
The document discusses the electrocardiogram (ECG or EKG), which records the electrical activity of the heart. It describes how the ECG can be used to measure the heart's rate and rhythm as well as detect issues like arrhythmias, defects, valve problems, and heart attacks. The document outlines the history of the ECG, from its invention by Willem Einthoven in 1895 to his receiving the Nobel Prize in 1924 for the device. It also explains the different lead configurations used to record the heart's electrical activity from multiple locations on the body simultaneously.
Ecg ppp.pptx 2
The document provides an overview of electrocardiography (ECG) including its uses, the electrical conduction system of the heart, how to record an ECG, the components of a normal ECG, how to report and analyze an ECG, and examples of normal and abnormal ECG tracings. The objectives are to introduce ECG, discuss its uses in diagnosing cardiac conditions, describe the electrical conduction system and how this is reflected in the ECG, and provide guidance on recording, interpreting, and reporting ECG findings.
Ecg
The electrocardiogram (ECG) measures the electrical activity of the heart. There are 12 conventional ECG leads that measure the heart from different angles. The ECG uses electrodes placed on the limbs and chest to record the heart's electrical signals as waveforms on graph paper over time, showing deflections like the P, Q, R, S, and T waves. The ECG provides information about heart rate, rhythms, and time intervals to evaluate for conditions like arrhythmias or conduction delays.
Ecg
The document summarizes the mechanical and electrical events of the cardiac cycle. It describes:
1) The cardiac cycle involves electrical, pressure, and volume changes between heartbeats including systole when the myocardium contracts and diastole when it relaxes.
2) There are four mechanical events in a cardiac cycle: ventricular filling, isovolumetric contraction, ventricular ejection, and isovolumetric relaxation.
3) An electrocardiogram (ECG or EKG) records the electrical activity and can detect abnormalities in heart rhythm or conduction.
Electrocardiogram (ECG)
An electrocardiogram (ECG) records the electrical activity of the heart. A normal ECG waveform contains a P wave, QRS complex, and T wave. The P wave represents atrial depolarization, the QRS complex represents ventricular depolarization, and the T wave represents ventricular repolarization. An ECG also contains isoelectric lines, waves, segments, intervals, and a voltage and time calibration to analyze the tracing.
ELECTROCARDIOGRAM BASIC
This document provides an overview of electrocardiography (ECG/EKG). It discusses cardiac anatomy, the origin and spread of the cardiac impulse, electrophysiology of the heart, and the recording and interpretation of the ECG. Key points covered include the waves of the normal ECG (P, QRS, T), intervals (PR, QT), cardiac conduction system, 12-lead ECG system, axis determination, and common abnormalities. The overall goal is to describe the basics of ECG including its recording and clinical applications.
ECG
The document discusses the basics of electrocardiography (ECG), including that it records the electrical activity of the heart, not mechanical contractions. It explains that ECG waves are either positive or negative depending on if they represent depolarization or repolarization and their direction of travel. The document also outlines the electrodes and 12 leads used in ECGs, noting that multiple electrodes and leads allow views of the heart from different angles. Finally, it lists the waves seen on an ECG and what they represent in terms of atrial and ventricular activity.
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This document provides information about electrocardiography (ECG) including its history, components, interpretation, and procedure. It discusses that ECG was invented in 1901 by Enthovan to record electrical impulses of the heart. It describes the normal conduction system, waves (P, Q, R, S, T), segments, intervals of ECG and placement of 12 leads. The document outlines the procedure for performing an ECG including preparing the patient, connecting the leads, and interpreting the results. It emphasizes the importance of properly performing and interpreting ECG to assess cardiac function and diagnose cardiac conditions.
Ecg ppt
This document discusses the electrocardiogram (ECG) and the electrical activity of the heart. It provides information on how ECG is used to measure heart rate and detect any heart damage. The basics of heart anatomy and function are described, including the four chambers and pacemaking nodes. The key waves of the ECG are defined, such as the P, QRS, and T waves. Methods for detecting QRS complexes are outlined, including filtering, differentiation, and thresholding. Potential artifacts in ECG signals are also reviewed, such as noise, baseline wandering, and powerline interference.
Basics of ECG
The document provides information about electrocardiograms (ECGs):
1) It defines an ECG as the physical translation of the electrical phenomena created in the heart muscles and produced as a graph by an ECG machine.
2) It describes how ECGs can be used to identify arrhythmias, ischemia, chamber hypertrophy, and other cardiac conditions.
3) It explains the basics of heart anatomy including the four chambers and valves, and how the electrical conduction system generates and transmits electrical impulses to trigger contractions.
What is electrocardiogram (ECG)
An ECG (electrocardiogram) records the electrical activity of your heart at rest. It provides information about your heart rate and rhythm and shows if there is an enlargement of the heart due to high blood pressure (hypertension) or evidence of a previous heart attack (myocardial infarction).
Questions and Answers related to ECG and illustration. Short assignment with diagram and images
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This document provides an overview of electrocardiography (ECG) for paramedics and junior medical officers. It discusses the anatomy and physiology underlying the ECG waveform, including the conduction system of the heart and cardiac action potentials. It then describes how to properly perform and interpret a standard 12-lead ECG, defining the various waves, segments, intervals and other components as well as common abnormalities. Factors that can affect the ECG tracing are also reviewed.
Abnormal Electrocardiography
This document discusses various abnormalities seen on electrocardiograms (ECGs). It describes sinus bradycardia, tachycardia, sick sinus syndrome and various types of heart block including first, second and third degree blocks. It also discusses bundle branch blocks, ventricular arrhythmias including extrasystoles, tachycardias and fibrillation. Myocardial ischemia and infarction are described along with ECG changes seen. Various electrolyte abnormalities and their effects on ECG tracings are also summarized.
Electrocardiogram
The document discusses electrical activity of the heart as recorded by an electrocardiogram (ECG). It defines key ECG terminology like waves, intervals, complexes and explains what each part of the ECG represents in terms of electrical activity in the heart. Specific waves like P, QRS, T are described in detail along with common abnormalities. Other concepts covered include heart rate calculation methods, cardiac rhythms and axis determination. The document provides a comprehensive overview of interpreting and understanding ECG readings.
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This document provides an overview of electrocardiography (ECG) including what an ECG is, how it is recorded and interpreted. It discusses the cardiac conduction system, the standard 12-lead ECG configuration, normal ECG waveforms and intervals, and techniques for determining heart rate, rhythm, and electrical axis. Common normal variants and abnormalities that can be detected on ECG are also outlined. The document emphasizes the importance of correlating ECG findings with the clinical presentation in order to provide an accurate final impression.
Electrocardiography
This document provides an overview of electrocardiography (ECG) analysis. It discusses the electrical conduction system of the heart, including the sinoatrial node, atrioventricular node, and Purkinje fibers. It explains the three phases of the ECG wave - polarization, depolarization, and repolarization. Key aspects of interpreting ECG strips such as the P, QRS, and T waves are covered. Common cardiac rhythms like sinus rhythm, sinus bradycardia, sinus tachycardia, atrial fibrillation, atrial flutter, and ventricular fibrillation are also summarized.
E.C.G. UNDERSTANDING AND INTERPRETATION
This document provides an overview of electrocardiography (ECG) and how to interpret an ECG. It discusses the history and importance of ECG, the conduction system of the heart, how ECG leads work, what a normal ECG waveform looks like, how to evaluate rhythm and rate, and how to identify common abnormalities. Key aspects of a normal ECG that are described include the P wave, PR interval, QRS complex, ST segment, T wave, and QT interval. Common abnormalities that can be identified on an ECG include arrhythmias, myocardial infarction, chamber enlargement, and electrolyte imbalances.
ecg-130715033518-phpapp02-1.pdf
An electrocardiogram (ECG) records the electrical activity of the heart. It detects depolarization and repolarization of the myocardium through electrodes attached to the skin. The normal conduction pathway in the heart involves electrical signals traveling from the sinoatrial node through the atria and atrioventricular node before reaching the ventricles. An ECG provides 12 leads that give different views of the heart. It is used to diagnose conditions like myocardial infarction, dysrhythmias, and electrolyte imbalances.
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Procedure of Recording ECG
It's procedure of recording ECG for Nursing Students.
It is helpful content for GNM 2nd Year & B.Sc.N. 2nd Year Students.
Electrocardiogram
This document discusses electrocardiography (ECG), including:
1. ECG records electrical potentials during the cardiac cycle using leads attached to the limbs and chest.
2. There are standard bipolar limb leads and augmented unipolar leads, as well as 6 chest leads.
3. The ECG can be used to analyze heart rate, rhythm, conduction, chamber size, muscle thickness and detect abnormalities.
Basics of ECG
This document provides an overview of electrocardiography (ECG or EKG):
- The ECG is essential for diagnosing cardiac rhythm abnormalities and chest pain, and guides treatment like thrombolysis for heart attacks.
- The history of ECG development is traced from early experiments in the 1800s to William Einthoven's invention of the first clinical ECG machine in the early 1900s.
- A normal ECG shows a regular rhythm between 60-100 beats per minute, visible P waves before each QRS complex, and normal durations for the P-R interval, QRS complex, and T wave.
Ecg 2
The document discusses the electrocardiogram (ECG or EKG), which records the electrical activity of the heart. It describes how the ECG can be used to measure the heart's rate and rhythm as well as detect issues like arrhythmias, defects, valve problems, and heart attacks. The document outlines the history of the ECG, from its invention by Willem Einthoven in 1895 to his receiving the Nobel Prize in 1924 for the device. It also explains the different lead configurations used to record the heart's electrical activity from multiple locations on the body simultaneously.
Ecg ppp.pptx 2
The document provides an overview of electrocardiography (ECG) including its uses, the electrical conduction system of the heart, how to record an ECG, the components of a normal ECG, how to report and analyze an ECG, and examples of normal and abnormal ECG tracings. The objectives are to introduce ECG, discuss its uses in diagnosing cardiac conditions, describe the electrical conduction system and how this is reflected in the ECG, and provide guidance on recording, interpreting, and reporting ECG findings.
Ecg
The electrocardiogram (ECG) measures the electrical activity of the heart. There are 12 conventional ECG leads that measure the heart from different angles. The ECG uses electrodes placed on the limbs and chest to record the heart's electrical signals as waveforms on graph paper over time, showing deflections like the P, Q, R, S, and T waves. The ECG provides information about heart rate, rhythms, and time intervals to evaluate for conditions like arrhythmias or conduction delays.
Ecg
The document summarizes the mechanical and electrical events of the cardiac cycle. It describes:
1) The cardiac cycle involves electrical, pressure, and volume changes between heartbeats including systole when the myocardium contracts and diastole when it relaxes.
2) There are four mechanical events in a cardiac cycle: ventricular filling, isovolumetric contraction, ventricular ejection, and isovolumetric relaxation.
3) An electrocardiogram (ECG or EKG) records the electrical activity and can detect abnormalities in heart rhythm or conduction.
Electrocardiogram (ECG)
An electrocardiogram (ECG) records the electrical activity of the heart. A normal ECG waveform contains a P wave, QRS complex, and T wave. The P wave represents atrial depolarization, the QRS complex represents ventricular depolarization, and the T wave represents ventricular repolarization. An ECG also contains isoelectric lines, waves, segments, intervals, and a voltage and time calibration to analyze the tracing.
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This document provides an overview of electrocardiography (ECG/EKG). It discusses cardiac anatomy, the origin and spread of the cardiac impulse, electrophysiology of the heart, and the recording and interpretation of the ECG. Key points covered include the waves of the normal ECG (P, QRS, T), intervals (PR, QT), cardiac conduction system, 12-lead ECG system, axis determination, and common abnormalities. The overall goal is to describe the basics of ECG including its recording and clinical applications.
ECG
The document discusses the basics of electrocardiography (ECG), including that it records the electrical activity of the heart, not mechanical contractions. It explains that ECG waves are either positive or negative depending on if they represent depolarization or repolarization and their direction of travel. The document also outlines the electrodes and 12 leads used in ECGs, noting that multiple electrodes and leads allow views of the heart from different angles. Finally, it lists the waves seen on an ECG and what they represent in terms of atrial and ventricular activity.
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This document provides information about electrocardiography (ECG) including its history, components, interpretation, and procedure. It discusses that ECG was invented in 1901 by Enthovan to record electrical impulses of the heart. It describes the normal conduction system, waves (P, Q, R, S, T), segments, intervals of ECG and placement of 12 leads. The document outlines the procedure for performing an ECG including preparing the patient, connecting the leads, and interpreting the results. It emphasizes the importance of properly performing and interpreting ECG to assess cardiac function and diagnose cardiac conditions.
Ecg ppt
This document discusses the electrocardiogram (ECG) and the electrical activity of the heart. It provides information on how ECG is used to measure heart rate and detect any heart damage. The basics of heart anatomy and function are described, including the four chambers and pacemaking nodes. The key waves of the ECG are defined, such as the P, QRS, and T waves. Methods for detecting QRS complexes are outlined, including filtering, differentiation, and thresholding. Potential artifacts in ECG signals are also reviewed, such as noise, baseline wandering, and powerline interference.
Basics of ECG
The document provides information about electrocardiograms (ECGs):
1) It defines an ECG as the physical translation of the electrical phenomena created in the heart muscles and produced as a graph by an ECG machine.
2) It describes how ECGs can be used to identify arrhythmias, ischemia, chamber hypertrophy, and other cardiac conditions.
3) It explains the basics of heart anatomy including the four chambers and valves, and how the electrical conduction system generates and transmits electrical impulses to trigger contractions.
What is electrocardiogram (ECG)
An ECG (electrocardiogram) records the electrical activity of your heart at rest. It provides information about your heart rate and rhythm and shows if there is an enlargement of the heart due to high blood pressure (hypertension) or evidence of a previous heart attack (myocardial infarction).
Questions and Answers related to ECG and illustration. Short assignment with diagram and images
Ecg update(basic cardiology)
This document provides an overview of electrocardiography (ECG) for paramedics and junior medical officers. It discusses the anatomy and physiology underlying the ECG waveform, including the conduction system of the heart and cardiac action potentials. It then describes how to properly perform and interpret a standard 12-lead ECG, defining the various waves, segments, intervals and other components as well as common abnormalities. Factors that can affect the ECG tracing are also reviewed.
Abnormal Electrocardiography
This document discusses various abnormalities seen on electrocardiograms (ECGs). It describes sinus bradycardia, tachycardia, sick sinus syndrome and various types of heart block including first, second and third degree blocks. It also discusses bundle branch blocks, ventricular arrhythmias including extrasystoles, tachycardias and fibrillation. Myocardial ischemia and infarction are described along with ECG changes seen. Various electrolyte abnormalities and their effects on ECG tracings are also summarized.
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The document discusses electrical activity of the heart as recorded by an electrocardiogram (ECG). It defines key ECG terminology like waves, intervals, complexes and explains what each part of the ECG represents in terms of electrical activity in the heart. Specific waves like P, QRS, T are described in detail along with common abnormalities. Other concepts covered include heart rate calculation methods, cardiac rhythms and axis determination. The document provides a comprehensive overview of interpreting and understanding ECG readings.
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This document provides an overview of electrocardiography (ECG) including what an ECG is, how it is recorded and interpreted. It discusses the cardiac conduction system, the standard 12-lead ECG configuration, normal ECG waveforms and intervals, and techniques for determining heart rate, rhythm, and electrical axis. Common normal variants and abnormalities that can be detected on ECG are also outlined. The document emphasizes the importance of correlating ECG findings with the clinical presentation in order to provide an accurate final impression.
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This document provides an overview of electrocardiography (ECG) analysis. It discusses the electrical conduction system of the heart, including the sinoatrial node, atrioventricular node, and Purkinje fibers. It explains the three phases of the ECG wave - polarization, depolarization, and repolarization. Key aspects of interpreting ECG strips such as the P, QRS, and T waves are covered. Common cardiac rhythms like sinus rhythm, sinus bradycardia, sinus tachycardia, atrial fibrillation, atrial flutter, and ventricular fibrillation are also summarized.
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An electrocardiogram (ECG) records the electrical activity of the heart. It detects depolarization and repolarization of the myocardium through electrodes attached to the skin. The normal conduction pathway in the heart involves electrical signals traveling from the sinoatrial node through the atria and atrioventricular node before reaching the ventricles. An ECG provides 12 leads that together give multiple views of the heart's electrical activity. Key waves include the P wave, QRS complex, ST segment, and T wave. Nurses must ensure proper ECG procedure and monitor for any abnormalities.
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This document provides an overview of electrocardiography (ECG) including:
1. It defines an ECG as recording the electrical activity of the heart over time.
2. It describes the normal conduction pathway in the heart and the components of the ECG waveform.
3. It explains how a 12-lead ECG is recorded using electrodes placed on the limbs and chest to measure voltage differences.
4. Various cardiac rhythms and arrhythmias are evaluated such as sinus tachycardia, supraventricular tachycardia, atrial flutter, atrial fibrillation, and premature ventricular complexes.
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This document provides an overview of basics of ECG, including:
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- An explanation of what an ECG measures and how it can be used to identify arrhythmias, ischemia, infarction and other cardiac conditions.
- A breakdown of the components of a normal ECG waveform including the P wave, PR interval, QRS complex, ST segment, and T wave.
- Descriptions of the 12-lead ECG system and how each lead views electrical activity from different angles in the heart.
- Explanations of how to analyze an ECG, including determining heart rate and cardiac axis. Bradyarrhythm
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This document provides an overview of electrocardiography (ECG) including its history, basics, components, and interpretation. It discusses that ECG was invented in 1895 and measures the heart's electrical activity through electrodes placed on the skin. The ECG waveform includes the P wave, QRS complex, and T wave which represent atrial depolarization, ventricular depolarization, and ventricular repolarization, respectively. It also describes the normal ranges for components, abnormalities, cardiac axis determination, and standard 12-lead ECG. The document is a comprehensive review of electrocardiography fundamentals.
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This document provides an overview of ECG basics:
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- The 12-lead ECG system is described including standard and augmented limb leads and precordial leads.
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The document provides an overview of electrocardiograms (ECGs), including their history, utility, technical aspects, waveform genesis, intervals and segments. An ECG records the heart's electrical activity via electrodes on the body surface. It has evolved since its invention in the late 19th century and remains a fundamental cardiac diagnostic tool, providing information on conditions like arrhythmias and ischemia. Proper interpretation requires considering the clinical context along with various waveform features and intervals seen on the ECG.
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The electrocardiogram (ECG or EKG) measures and records the electrical activity of the heart. It was developed in 1893 by Willem Einthoven, who received the Nobel Prize for his work. An ECG works by detecting the tiny electrical changes on the skin that occur with each heartbeat. It shows the heart's rate and rhythm, as well as any damage to heart muscle. A standard 12-lead ECG provides multiple views of the heart and can help diagnose conditions like heart attacks.
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An electrocardiogram (ECG) records the electrical activity of the heart on paper. It is recorded at a rate of 25mm/s, with each large square measuring 0.2 seconds and containing 5 small squares of 0.04 seconds each. The P wave represents atrial depolarization, the QRS complex represents ventricular depolarization, and the T wave represents ventricular repolarization. Various intervals between the P, QRS, and T waves provide information about electrical conduction through the heart. Abnormalities in the ECG patterns can provide clues about conditions affecting different areas of the heart muscle.
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The document provides information on the history and development of the electrocardiogram (ECG). It discusses key individuals who contributed to advancements in ECG technology and interpretation. The summary also outlines the main components of an ECG reading including waveforms, intervals, leads, and how to interpret cardiac electrical activity and identify abnormalities.
ecg machine
An electrocardiogram (ECG) records the electrical activity of the heart. Small metal electrodes are attached to the skin on the arms, legs, and chest to detect electrical impulses from the heart. The ECG machine amplifies and records these impulses, showing normal and abnormal heart rhythms and any signs of heart damage or disease. A normal ECG tracing shows the P wave, QRS complex, and T wave representing atrial and ventricular contractions and repolarizations. The ECG test takes about five minutes and is painless.
ECG An Introduction
The document provides an overview of electrocardiography (ECG). It discusses the history of ECG development. It then covers how to perform an ECG, how an ECG works by detecting electrical changes during heartbeats, ECG paper calibration, the 12 leads, and how to interpret various ECG components like rate, rhythm, axes, waves, intervals, and segments. Key points about normal ECG readings are also presented along with 10 interpretation rules.
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Ecg1 DR NIKUNJ R SHEKHADA (MBBS,MS GEN SURG,DNB CTS SR)
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ECG
- 2. We are probably familiar with this scene from a typical hospital television shows ; a patient is hooked up to a monitoring machine that shows voltage traces on a screen and makes the sound ‘…pip…pip…pip….peeeeeeeeeeeee’ as the patient goes into cardiac arrest. This type of machine (electro-cardiograph)is used to obtain an electrocardiogram (ECG)
- 3. ECG - ELECTROCARDIOGRAM ELECTRO – ELECTRICITY CARDIO- HEART GRAM- VISUALIZE A medical device which is used to measure and monitor the rate and regularity of heartbeats. The heart is made to beat by an electrical impulse orginating in the sinus auricular node. EINTHEN WILLEM is the FATHER OF ECG
- 4. HISTORY
- 5. HISTORY ▪ 1842- Italian scientist Carlo Matteucci realizes that electricity is associated with the heart beat. ▪ 1876- Irish scientist Marey analyses the electric pattern of frog’s heart. ▪ 1895- William Einthoven , credited for the invention of EKG ▪ 1906- using the string electrometer EKG, William Einthoven diagnoses some heart problem.
- 7. • 1938- AHA and Cardiac society of great Britain defined and position of chest leads. • 1942- Goldberger increased Wilson’s unipolar lead voltage by 50% and made augumented leads.
- 9. INDICATIONS ▪ Myocardial infarction & other types of CAD such as angina ▪ Cardiac dysrhythmias ▪ Cardiac enlargement ▪ Inflammatory diseases of the heart ▪ Effects on the heart by drugs, such as antiarrythmics.
- 10. CONDUCTION OF THE HEART BEAT
- 11. INHERENT RATE
- 12. ▪ ECG machine amplifies and records the electrical activity of the heart. ▪ The electrical activities are recorded on a paper called ECG PAPER ▪ The machine is connected to the surface skin of the body through ELECTRODES called ECG LEADS.
- 13. LEAD SYSTEM A 12- lead ECG provides multiple electrical views of the heart along a vertical and horizontal plane. LIMB LEADS- 6 CHEST LEADS- V1,V2,V3,V4,V5 &V6
- 14. ▪ The electrocardiogram of man shows a series of WAVES. The waves represent the sequence of Depolarization and Repolarization of the auricles and ventricles. Each ECG has 5 consecutive waves, namely 3 UPWARD WAVES or POSITIVE WAVES and 2 DOWNWARD WAVES or NEGATIVE WAVES. They are named as PQRST. ▪ upward deflections- P,R &T ▪ Downward – Q& S
- 15. Add a Slide Title - 2
- 16. P WAVE ▪ Positive wave ▪ It is also called as ATRIAL COMPLEX ▪ FIRST WAVE ▪ It represents the wave of DEPOLARISATION that spreads from SINOAURICULAR NODE throughout auricles. ▪ It is a small wave with a rounded top. ▪ It takes place when the impulse spreads over the atrial chambers. ▪ Average duration- 0.1 second
- 17. QRS ▪ Ventricular depolarization ▪ Initial ventricular complex ▪ Average duration- 0.06 to 0.1 sec.
- 18. Q WAVE ▪ FIRST DOWNWARD WAVE ▪ The impulse arrives at the interventricular septum and the septum contracts.
- 19. R WAVE ▪ 2ND Upward deflection ▪ It represents the activity of RIGHT VENTRICLE. ▪ It is a conspicuous wave with the tallest amplitude.
- 20. PR AND QR INTERVAL ▪ PR INTERVAL period from beginning of P WAVE to beginning of Q wave. PR interval lasts 0.16 sec ▪ QT INTERVAL PERIOD FROM BEGINNING OF Q WAVE TO END OF THE T WAVE. it represents the entire periods of depolarization and repolarization of ventricle. interval lasts 0.35 sec
- 21. S WAVE ▪ SECOND DOWNWARD WAVE ▪ It represents the activity of LEFT VENTRICLE.
- 22. T WAVE ▪ REPOLARISATION WAVE OF THE VENTRICLE. ▪ Third upward deflection. ▪ Duration-0.27 seconds
- 23. USES OF ECG ▪ Heart beat rate ▪ Heart rhythm ▪ Abnormal electrical conduction ▪ Poor blood flow to heart muscles ▪ Heart attack ▪ Position of chambers ▪ Coronary artery disease ▪ Effect of drugs
- 26. THANK YOU