EKG Flash Chart
... P waves: Inverted before or after qRs or not visible PR interval: < 0.12 second when inverted P is before qRs qRs: 0.04 – 0.10 second P:qRs = 1:1 if Ps are visible ...
... P waves: Inverted before or after qRs or not visible PR interval: < 0.12 second when inverted P is before qRs qRs: 0.04 – 0.10 second P:qRs = 1:1 if Ps are visible ...
... The heart activity includes electrical signal (electrocardiogram or ECG) and mechanical actions. The electrical system is also called the cardiac conduction system. A graphical picture of the heart electrical activity is called electrocardiogram (EKG) [1]. Events in each heartbeat are very precise a ...
Cardiac Conditions - Kentucky Academy of Family Physicians
... rates generally less than 150 beats/min without worsening with stress/Holter may compete ...
... rates generally less than 150 beats/min without worsening with stress/Holter may compete ...
February 2009 12 Lead EKG
... through the coronary arteries If the coronary arteries are blocked, they must be reopened if circulation is going to be restored to that area of tissue supplied ...
... through the coronary arteries If the coronary arteries are blocked, they must be reopened if circulation is going to be restored to that area of tissue supplied ...
What is Sudden Cardiac Arrest? Occurs suddenly and often without
... o NonInherited (not passed on from the family, but still present at birth) conditions: Coronary Artery Abnormalities – abnormality of the blood vessels that supply blood to the heart muscle. The second most common cause of sudden cardiac arrest in athletes in the U.S. Aortic valve abnormalities ...
... o NonInherited (not passed on from the family, but still present at birth) conditions: Coronary Artery Abnormalities – abnormality of the blood vessels that supply blood to the heart muscle. The second most common cause of sudden cardiac arrest in athletes in the U.S. Aortic valve abnormalities ...
Heart Block Review Mechanism of First Degree Heart Block First
... Mechanism of 3rd Degree Heart Block The block at the AV node is complete. The sinus beats cannot penetrate the node and thus are not conducted through to the ventricles. An escape mechanism from either the junction or the ventricles will take over to pace the ventricles. The atria and ventricles fu ...
... Mechanism of 3rd Degree Heart Block The block at the AV node is complete. The sinus beats cannot penetrate the node and thus are not conducted through to the ventricles. An escape mechanism from either the junction or the ventricles will take over to pace the ventricles. The atria and ventricles fu ...
Right Ventricular Outflow Tract tachycardia – Recognition and
... description of the attitudinal relations of the RVOT and surrounding structures can be found in the clinical review by Hutchinson and Garcia (reference 4). Conventionally it is accepted to separate the septal and free wall of the RVOT into anterior, mid and posterior regions with the majority of RVO ...
... description of the attitudinal relations of the RVOT and surrounding structures can be found in the clinical review by Hutchinson and Garcia (reference 4). Conventionally it is accepted to separate the septal and free wall of the RVOT into anterior, mid and posterior regions with the majority of RVO ...
Basic ECG Rhythm Identification Part II Learning Objectives
... • Treat the primary disease process that allows the escape rhythm to take over pacemaker control of the heart • Pharmacological or electrical suppressive therapy is rarely needed because the ventricular rate is usually less than 100 bpm • If symptomatic or hemodynamically compromised, increasing the ...
... • Treat the primary disease process that allows the escape rhythm to take over pacemaker control of the heart • Pharmacological or electrical suppressive therapy is rarely needed because the ventricular rate is usually less than 100 bpm • If symptomatic or hemodynamically compromised, increasing the ...
Cardiac Arrhythmias
... refractory period and slow conduction, and the other has a longer effective refractory period and conducts faster. • In sinus rhythm, the atrial impulse that depolarizes the ventricles usually conducts through the fast pathway. • If the atrial impulse (e.g. an atrial premature beat) occurs early whe ...
... refractory period and slow conduction, and the other has a longer effective refractory period and conducts faster. • In sinus rhythm, the atrial impulse that depolarizes the ventricles usually conducts through the fast pathway. • If the atrial impulse (e.g. an atrial premature beat) occurs early whe ...
Cardiac Arrhythmias sree
... refractory period and slow conduction, and the other has a longer effective refractory period and conducts faster. • In sinus rhythm, the atrial impulse that depolarizes the ventricles usually conducts through the fast pathway. • If the atrial impulse (e.g. an atrial premature beat) occurs early whe ...
... refractory period and slow conduction, and the other has a longer effective refractory period and conducts faster. • In sinus rhythm, the atrial impulse that depolarizes the ventricles usually conducts through the fast pathway. • If the atrial impulse (e.g. an atrial premature beat) occurs early whe ...
Cardiac Arrhythmias
... refractory period and slow conduction, and the other has a longer effective refractory period and conducts faster. • In sinus rhythm, the atrial impulse that depolarizes the ventricles usually conducts through the fast pathway. • If the atrial impulse (e.g. an atrial premature beat) occurs early whe ...
... refractory period and slow conduction, and the other has a longer effective refractory period and conducts faster. • In sinus rhythm, the atrial impulse that depolarizes the ventricles usually conducts through the fast pathway. • If the atrial impulse (e.g. an atrial premature beat) occurs early whe ...
ECG Layout_May_1 - Continuing Medical Education
... the association with a slow heart rate (particularly below 50 beats per minute) warrants further evaluation. ...
... the association with a slow heart rate (particularly below 50 beats per minute) warrants further evaluation. ...
Chapter06_Detailed_Answers
... enlargement. Notched or wide (prolonged) P waves indicate increased left atrial pressure and left atrial enlargement. 8. a: ...
... enlargement. Notched or wide (prolonged) P waves indicate increased left atrial pressure and left atrial enlargement. 8. a: ...
Historical review of clinical electrocardiographic lead systems and
... into the tracings obtained. ...
... into the tracings obtained. ...
Lesson 5 ELECTROCARDIOGRAPHY I
... collection. After calibration of the system, we began our experiment. There were 5 data conditions tested. The first four conditions each had an ECG recording of 20 seconds. The first condition tested was supine with regular breathing, a marker was inserted for each inhalation and exhalation. The se ...
... collection. After calibration of the system, we began our experiment. There were 5 data conditions tested. The first four conditions each had an ECG recording of 20 seconds. The first condition tested was supine with regular breathing, a marker was inserted for each inhalation and exhalation. The se ...
Enlarged Heart (Cardiomegaly)
... heart. There are two types of cardiomegaly: 1. Dilative- The heart can become enlarged due to dilation of the myocardium. An example is Dilated Cardiomyopathy (DCM), which is the most common form of non-ischemic cardiomyopathy. In DCM, the heart becomes weakened and enlarged, and congestive heart fa ...
... heart. There are two types of cardiomegaly: 1. Dilative- The heart can become enlarged due to dilation of the myocardium. An example is Dilated Cardiomyopathy (DCM), which is the most common form of non-ischemic cardiomyopathy. In DCM, the heart becomes weakened and enlarged, and congestive heart fa ...
ppt - Open.Michigan - University of Michigan
... We have reviewed this material in accordance with U.S. Copyright Law and have tried to maximize your ability to use, share, and adapt it. These lectures have been modified in the process of making a publicly shareable version. The citation key on the following slide provides information about how yo ...
... We have reviewed this material in accordance with U.S. Copyright Law and have tried to maximize your ability to use, share, and adapt it. These lectures have been modified in the process of making a publicly shareable version. The citation key on the following slide provides information about how yo ...
Protocol of fMCG
... MCG can be commenced. A control of plausibility (i.e. observation of a beat to beat variability plot or FHR trace) may be used to secure validity of the average. ...
... MCG can be commenced. A control of plausibility (i.e. observation of a beat to beat variability plot or FHR trace) may be used to secure validity of the average. ...
cardiac corner: name that arrhythmia
... is better seen at a 10-second window than the 30-second window. The beat after the 6-second pause is atrial (P wave is seen); the beats following the 3 and 4-second asystoles are junctional with an absence or inversion of the P wave. Additionally, recording several ECG lead combinations simultaneous ...
... is better seen at a 10-second window than the 30-second window. The beat after the 6-second pause is atrial (P wave is seen); the beats following the 3 and 4-second asystoles are junctional with an absence or inversion of the P wave. Additionally, recording several ECG lead combinations simultaneous ...
Neurogenic heart
... • In neurogenic heart there are nerve fibres innervating in heart. • They fire electrical impulses causing rhythmic beating of heart. • The nerve cells innervating the heart come together to form a ganglion near the heart known as cardiac or heart ganglion. • The ganglion may be one or more. • 1st ...
... • In neurogenic heart there are nerve fibres innervating in heart. • They fire electrical impulses causing rhythmic beating of heart. • The nerve cells innervating the heart come together to form a ganglion near the heart known as cardiac or heart ganglion. • The ganglion may be one or more. • 1st ...
Vectorial Analysis of the Normal Electrocardiogram
... This sequence of repolarization is postulated to be caused by the high blood pressure inside the ventricles during contraction, which greatly reduces coronary blood flow to the endocardium, thereby slowing repolarization in the endocardial areas. ...
... This sequence of repolarization is postulated to be caused by the high blood pressure inside the ventricles during contraction, which greatly reduces coronary blood flow to the endocardium, thereby slowing repolarization in the endocardial areas. ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.