Applied ECG
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An electrocardiogram (ECG) records the electrical activity of the heart over time via electrodes placed on the skin. It detects the heart's electrical dipole by measuring the potential differences between electrodes. The ECG can be used to diagnose conditions like heart attacks, arrhythmias, electrolyte imbalances, and more by analyzing features of the P, QRS, and T waves as well as intervals between them. To perform an ECG, electrodes are attached to the patient's limbs after cleaning the skin. The ECG machine then records the signals from multiple leads to analyze the heart's rate, rhythm, and electrical axis.
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ECG analysis part (1) \ Mohammad Al-me`ani. , MSN, RN.
The document discusses ECG analysis and provides details about:
1. The ECG records the electrical activity of the heart through electrodes placed on the skin. A 12-lead ECG provides views from 12 reference points.
2. The ECG traces the heart's electrical impulses on graph paper. It displays depolarization and repolarization processes and is used to diagnose various cardiac conditions.
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The document provides information about electrocardiograms (ECGs) including:
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2) It explains what an ECG is and how it works by measuring the electrical signals produced by heart muscle depolarization and repolarization using electrodes placed on the body.
3) It details the 12-lead ECG system including the 10 wires attached to limbs and chest to measure electrical signals from different angles represented by 12 leads.
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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.
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Ecg basics.ppts
1. The document discusses different aspects of electrocardiography (ECG), including lead placement, normal ECG components, and how to read an ECG.
2. It provides details on properly placing the precordial leads on the chest and explains Einthoven's triangle.
3. The document outlines a 6-step approach for reading 12-lead ECGs: determining rate, rhythm, axis, intervals, hypertrophy, and evidence of infarction.
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The document provides information about electrocardiograms (ECGs) including:
1) It describes the basic anatomy and electrical conduction system of the heart.
2) It explains what an ECG is and how it works by measuring the electrical signals produced by heart muscle depolarization and repolarization using electrodes placed on the body.
3) It details the 12-lead ECG system including the 10 wires attached to limbs and chest to measure electrical signals from different angles represented by 12 leads.
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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.
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An electrocardiogram (ECG or EKG) records the electrical activity of the heart. A 12-lead ECG uses electrodes placed on the wrists, ankles, and chest to assess the heart from 12 different views. It is a valuable diagnostic tool that displays the heart's electrical activity as waveforms. The procedure involves preparing the ECG machine, attaching electrodes to the patient's limbs and chest in specific positions, recording the 12 leads automatically, and removing the electrodes after.
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Electrocardiogram
An electrocardiogram (ECG) records the electrical activity of the heart over time via electrodes placed on the skin. It displays the P wave, QRS complex, and T wave, which correspond to atrial depolarization and repolarization and ventricular depolarization and repolarization, respectively. The ECG is used clinically to diagnose cardiac conditions by examining intervals, amplitudes, and other characteristics. It provides important diagnostic information but cannot assess heart valves like angiography and echocardiography can.
Lec18(cvs)
This document provides instructions for analyzing cardiac rhythms based on an electrocardiogram (ECG). It describes 5 steps: 1) calculating the heart rate, 2) determining rhythm regularity, 3) assessing P waves, 4) measuring the PR interval, and 5) measuring QRS duration. Normal values for these metrics in normal sinus rhythm are also provided. The document additionally covers ECG lead placements and how the cardiac electrical conduction system generates the ECG tracings.
Fundamentals of Electrocardiography
The property of automaticity of the sinus node is responsible foe the impulse initiation and travels along the cardiac tissue as depolarizations which result in its contraction. So, when activated, the heart is a concentrated locus of time varying potentials in the body. These voltage fluctuations can be measured by the placement of electrodes on the surface of the body. This forms the basis of electrocardiography. In this presentation we will see the basics, the lead systems and the principles behind recording of ECG.
Electrocardiogram_20240614_173859_0000.pdf
Basics of Electrocardiogram
CONTENTS
โConduction System of the Heart
โWhat is ECG or EKG?
โECG Leads
โNormal waves of ECG.
โDimensions of ECG.
โ Abnormalities of ECG
CONDUCTION SYSTEM OF THE HEART
ECG:
โECG is a graphic record of the electrical activity of the heart.
โElectrical activity precedes the mechanical activity of the heart.
โElectrical activity has two phases:
Depolarization- contraction of muscle
Repolarization- relaxation of muscle
ECG Leads:
โ6 Chest leads
โ6 Limb leads
1. Bipolar Limb Leads:
Lead 1- Between right arm(-ve) and left arm(+ve)
Lead 2- Between right arm(-ve) and left leg(+ve)
Lead 3- Between left arm(-ve)
and left leg(+ve)
2. Augmented unipolar Limb Leads:
AvR- Right arm
AvL- Left arm
AvF- Left leg
3.Chest Leads:
V1 : Over 4th intercostal
space near right sternal margin
V2: Over 4th intercostal space near left sternal margin
V3:In between V2 and V4
V4:Over left 5th intercostal space on the mid
clavicular line
V5:Over left 5th intercostal space on the anterior
axillary line
V6:Over left 5th intercostal space on the mid
axillary line.
Normal ECG:
Waves of ECG:
P Wave
โขP Wave is a positive wave and the first wave in ECG.
โขIt is also called as atrial complex.
Cause: Atrial depolarisation
Duration: 0.1 sec
QRS Complex:
โขQRSโ complex is also called the initial ventricular complex.
โขโQโ wave is a small negative wave. It is continued as the tall โRโ wave, which is a positive wave.
โRโ wave is followed by a small negative wave, the โSโ wave.
Cause:Ventricular depolarization and atrial repolarization
Duration: 0.08- 0.10 sec
T Wave:
โขโTโ wave is the final ventricular complex and is a positive wave.
Cause:Ventricular repolarization Duration: 0.2 sec
Intervals and Segments of ECG:
P-R Interval:
โขโP-Rโ interval is the interval
between the onset of โPโwave and onset of โQโ wave.
โขโP-Rโ interval cause atrial depolarization and conduction of impulses through AV node.
Duration:0.18 (0.12 to 0.2) sec
Q-T Interval:
โขโQ-Tโ interval is the interval between the onset of โQโ
wave and the end of โTโ wave.
โขโQ-Tโ interval indicates the ventricular depolarization
and ventricular repolarization,
i.e. it signifies the
electrical activity in ventricles.
Duration:0.4-0.42sec
S-T Segment:
โขโS-Tโ segment is the time interval between the end of โSโ wave and the onset of โTโ wave.
Duration: 0.08 sec
R-R Interval:
โขโR-Rโ interval is the time interval between two consecutive โRโ waves.
โขIt signifies the duration of one cardiac cycle.
Duration: 0.8 sec
Dimension of ECG:
How to find heart rhytm of the heart?
Regular rhytm:
Irregular rhytm:
More than or less than 4
How to find heart rate using ECG?
If heart Rhytm is Regular :
Heart rate =
300/No.of large b/w 2 QRS complex
= 300/4
=75 beats/mins
How to find heart rate using ECG?
If heart Rhytm is irregular:
Heart rate = 10รNo.of QRS complex in 6 sec 5large box = 1sec
5ร6=30
10ร7 = 70 Beats/min
Abnormalities of ECG:
Cardiac Arrythmias:
1.Tachycardia
Heart Rate more than 100 beats/min
Introduction to Electrocardiography
This presentation covers few basic things about ECG, especially for UG Medical students like ECG leads, normal ECG waves, axis of ECG and how to look for common ECG misplacements.
normal ecg dr rashmi.pptx
The document discusses the normal electrocardiogram (ECG). It explains that the ECG records and graphs the electrical activity of the heart over time. The conducting system of the heart initiates and coordinates the contractions of the cardiac chambers. The ECG is recorded using electrodes placed on the skin that detect voltage changes between electrode pairs, known as leads. There are 12 standard leads that provide different views of the heart's electrical activity. The ECG can be used to determine the heart rate and rhythm, detect abnormalities, diagnose conditions like myocardial infarction, and evaluate the cardiac axis.
2020.06.05 ECG basics
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.
Ecg final pp ts; 19 06-2012
Yes, there is evidence of right ventricular hypertrophy (RVH) based on the following criteria seen in this ECG:
- Tall R wave in V1 with R>>S
- Deep S waves in leads V4, V5, V6
- Associated right axis deviation
- Deep T wave inversions in V1, V2, V3
The findings are consistent with RVH. Causes of RVH include pulmonary hypertension, congenital heart disease, pulmonary embolism etc.
55
56
Is there any hypertrophy ?
56
Criteria and Causes of LVH
Criteria of LVH
๏จ Tall R waves in L1
Electrocardiogram (ECG) / ECG interpretation
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.
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.
Ekg lab exp 3
The document discusses electrocardiograms (EKGs) and how they are used to analyze the electrical activity of the heart. It provides the following key points:
- An EKG records the electrical signals produced by the heart during each beat and can be used to detect disorders.
- The main components of a heart beat seen on an EKG are labeled P, Q, R, S, and T waves. Each component represents a different stage of the heartbeat.
- By analyzing the timing and shapes of these components, doctors can identify issues like abnormal heart rhythms, damage to heart muscle, or blockages in the heart's electrical pathways.
- The document describes procedures for students to record their
Ecg interpritation
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(EKG) BASICS
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.
Ekg experiment 3
The document discusses electrocardiograms (EKGs) and how they are used to analyze the electrical activity of the heart. It provides the following key points:
- An EKG records the electrical events in the heart as it beats, showing the natural conduction pathways and contractions of the atria and ventricles.
- The different waves in an EKG (P, QRS, T) represent different stages of the heartbeat and can indicate heart conditions if abnormal.
- By placing electrodes in different positions, additional information can be gleaned from EKG tracings about the direction of electrical activity in the heart.
- Doctors can analyze EKG tracings for abnormalities that may indicate conditions like
Ekg
The document discusses electrocardiograms (EKGs) and how they are used to analyze the electrical activity of the heart. It provides the following key points:
1. An EKG records the electrical signals produced by the heart during each beat and can be used to identify components like the P, QRS, and T waves that correspond to different phases of the heartbeat.
2. Abnormalities in the shape, timing, or presence of these components can provide clues about potential heart conditions like arrhythmias, damage to heart muscle, or blockages.
3. The experiment involves using EKG sensors to record a subject's heartbeat over time, identifying the normal waveform components and calculating heart rate,
Ekg
The document discusses electrocardiograms (EKGs) and how they are used to analyze the electrical activity of the heart. It provides the following key points:
1) An EKG records the electrical signals produced by the heart during each beat and can be used to identify components like the P, QRS, and T waves that correspond to different phases of the heartbeat.
2) Abnormalities in the shape, timing, or presence of these components can provide clues about potential heart conditions like arrhythmias, damage to heart muscle, or blockages.
3) The experiment involves using EKG sensors to record a subject's heartbeat over time, identifying the normal waveform components and calculating heart rate,
ECG details- for Students
This document provides information about performing and interpreting a standard 12-lead electrocardiogram (ECG). It discusses how to position the patient and properly apply the 10 electrodes in their correct locations. It describes the waves seen on an ECG including the P, QRS, T, and U waves as well as intervals such as PR and QT. Common cardiac rhythms like normal sinus rhythm, sinus bradycardia, premature ventricular contractions, atrial fibrillation and ventricular tachycardia are summarized along with their characteristics. Bundle branch blocks and axes are also mentioned. The overall document serves as a guide for technicians on how to obtain 12-lead ECGs and what the traces mean.
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The document provides an overview of cardiovascular physiology:
- It defines cardiovascular physiology as the study of the circulatory system, including the heart and blood vessels.
- The objectives are to explain circulation and perfusion, describe the cardiac cycle, and discuss factors that impact the cardiac cycle.
- Key topics covered include the anatomy and electrophysiology of the heart, regulation of the cardiovascular system, cardiac pump dynamics, the cardiac cycle, and influences on the cycle like nerves, hormones, preload and afterload.
- Physiology of the heart and blood vessels is discussed in detail through diagrams and explanations of concepts like the cardiac conduction system, action potentials, the ECG,
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.
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Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
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HYPERTENSION - SLIDE SHARE PRESENTATION.
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- 2. Depolarization Depolarization and repolarization 2
- 3. Electrocardiogram is recorded by: 1. Unipolar leads: VR, VL, VF and precordial V1 to V6 2. Bipolar leads: I, II and III 3. Augmented leads: aVR, aVL and aVF LL ๏ญ LA a. aVR = RA - 2 ๏ฉ LL ๏ซ LA ๏น b. aVR = RA + ๏ช๏ญ ๏บ ๏ซ 2 ๏ป c. RA + LA + LL = 0 d. Thus RA = -(LA + LL) RA e. b&d aVR = RA + = 3/2RA ( 3/2 VR) 2 Diagnostic value: 1. Hypertrophy of ventricle and atrium. 2. Conduction velocity. 3. Myocardial infarction and ischemia. 4. Disturbances of electrolyte balance. 5. Nodal conduction velocity. 6. Effects of antiarrhythmic agents. The items which could be explored by ECG: 1. characteristics ( amplitude and duration) of each wave, complex, segment and interval 2. heart rate 3. heart rhythm 4. vector of the heart 3
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