Effects of Exercise on the Heart
... Reduction in resting heart rate as a result of training Below 60 beats per minute ...
... Reduction in resting heart rate as a result of training Below 60 beats per minute ...
Cardiovascular 6 – Understanding the ECG
... Lead 1: Left arm Right arm. Left arm is positive electrode. Lead 2: Left foot right arm Left foot is positive electrode. Lead 3: Left foot left arm Left arm is positive electrode. Another 3 limb leads can be connected up which use one single limb lead as one electrode (the positive (+) one) an ...
... Lead 1: Left arm Right arm. Left arm is positive electrode. Lead 2: Left foot right arm Left foot is positive electrode. Lead 3: Left foot left arm Left arm is positive electrode. Another 3 limb leads can be connected up which use one single limb lead as one electrode (the positive (+) one) an ...
Regular
... When an impulse originates in a ventricle, conduction through the ventricles will be inefficient and the QRS will be wide and bizarre. ...
... When an impulse originates in a ventricle, conduction through the ventricles will be inefficient and the QRS will be wide and bizarre. ...
ECG Interpretation
... To obtain limb leads, electrodes are placed on the R arm, L arm, and L leg. By selecting a different pair, we create lead I, lead II, and lead III. By pushing the limb leads to the center of the triangle, we produce 3 intersecting lines. The augmented limb leads intersect at different angles, produc ...
... To obtain limb leads, electrodes are placed on the R arm, L arm, and L leg. By selecting a different pair, we create lead I, lead II, and lead III. By pushing the limb leads to the center of the triangle, we produce 3 intersecting lines. The augmented limb leads intersect at different angles, produc ...
Week 2 Lecture 1 - University of Alabama
... - Many times we need to remove noise from signals. - Use filters to remove high or low frequency components. - Many other signal processing purposes … ...
... - Many times we need to remove noise from signals. - Use filters to remove high or low frequency components. - Many other signal processing purposes … ...
Left Anterior Fascicular Block (LAFB)-KH
... The standard 12-lead electrocardiogram is a representation of the heart's electrical activity recorded from electrodes on the body surface. This section describes the basic components of the ECG and the lead system used to record the ECG tracings 1. ECG Waves and Intervals: What do they mean? P wave ...
... The standard 12-lead electrocardiogram is a representation of the heart's electrical activity recorded from electrodes on the body surface. This section describes the basic components of the ECG and the lead system used to record the ECG tracings 1. ECG Waves and Intervals: What do they mean? P wave ...
Gabie Gomez - Labmongers2
... Uses: these medications are use to treat and prevent cardiac arrhythmias, such as premature ventricular contractions (PVC’s), ventricular tachycardia (VT), premature atrial contractions (PACs), paroxysmal atrial tachycardia (PAT), atrial fibrillation, and atrial flutter. In some cases they can be us ...
... Uses: these medications are use to treat and prevent cardiac arrhythmias, such as premature ventricular contractions (PVC’s), ventricular tachycardia (VT), premature atrial contractions (PACs), paroxysmal atrial tachycardia (PAT), atrial fibrillation, and atrial flutter. In some cases they can be us ...
presentation source
... any lead, the EKG machine looks at a specific combination of leads in order to configure the tracing that we expect to see for Lead I, II, III, aVF, aVR, aVL or for V1V6. ...
... any lead, the EKG machine looks at a specific combination of leads in order to configure the tracing that we expect to see for Lead I, II, III, aVF, aVR, aVL or for V1V6. ...
![Genesis of electrocardiography []](http://s1.studyres.com/store/data/001826955_1-e5fb1802fc759332f76d3c7a07eb79bd-300x300.png)
Genesis of electrocardiography []
... moments of the cardiac cycle can be described by a different instantaneous vector, with different length and orientation. During a cardiac cycle (interval of time between the beginning of one cardiac activation until the beginning of the next cardiac activation), the terminal points of instantaneous ...
... moments of the cardiac cycle can be described by a different instantaneous vector, with different length and orientation. During a cardiac cycle (interval of time between the beginning of one cardiac activation until the beginning of the next cardiac activation), the terminal points of instantaneous ...
SYSTEMATIC APPROACH FOR ANALYZING CARDIAC RHYTHMS
... Adenosine for SVT, a naturally occurring amino acid Adenosine for SVT, a naturally occurring amino acid A rapid bolus is the key, 1st 6 milligrams, then 12 you see A sinus pause, then RSR, we’ll get an ECG, then let you be 7. Atropine Sing to “You are My Sunshine” You bring my rate up, you bring my ...
... Adenosine for SVT, a naturally occurring amino acid Adenosine for SVT, a naturally occurring amino acid A rapid bolus is the key, 1st 6 milligrams, then 12 you see A sinus pause, then RSR, we’ll get an ECG, then let you be 7. Atropine Sing to “You are My Sunshine” You bring my rate up, you bring my ...
How to read the ECG in athletes: distinguishing normal form abnormal
... voltage and duration) in leads I and V6 (arrowheads). Panel B. IRBBB in a trained athlete. The RV conduction interval is mildly prolonged (QRS duration = 115 ms) with a typical rSR’ pattern in V1 (arrow). Note also the reciprocal “Swave” in V6 (arrow). ...
... voltage and duration) in leads I and V6 (arrowheads). Panel B. IRBBB in a trained athlete. The RV conduction interval is mildly prolonged (QRS duration = 115 ms) with a typical rSR’ pattern in V1 (arrow). Note also the reciprocal “Swave” in V6 (arrow). ...
Arrhythmias
... Damage to nodal tissue, most commonly AV node (e.g. during a myocardial infarct), prevents conduction of the signal to other parts of the heart· The areas of the heart which normally rely on normal SA node signal start to beat independently, under the action of their own pacemakers. ...
... Damage to nodal tissue, most commonly AV node (e.g. during a myocardial infarct), prevents conduction of the signal to other parts of the heart· The areas of the heart which normally rely on normal SA node signal start to beat independently, under the action of their own pacemakers. ...
Anterior MI
... between the R & L atria. Either way, impulses are formed in a totally unpredictable fashion. The AV node allows some of the impulses to pass through at variable intervals (so rhythm is irregularly irregular). ...
... between the R & L atria. Either way, impulses are formed in a totally unpredictable fashion. The AV node allows some of the impulses to pass through at variable intervals (so rhythm is irregularly irregular). ...
The Heartbeat
... • Reach threshold first • Set heart rate • Conducting cells • Distributes stimuli to myocardium Copyright © 2007 Pearson Education, Inc., publishing as Benjamin Cummings ...
... • Reach threshold first • Set heart rate • Conducting cells • Distributes stimuli to myocardium Copyright © 2007 Pearson Education, Inc., publishing as Benjamin Cummings ...
HOLTER MONITORING: BASIS, ADVANTAGES AND
... procedures used to evaluate the heart. Electrodes (small, plastic patches) are placed at certain locations on the chest and abdomen. When the electrodes are connected to an ECG machine by lead wires, the electrical activity of the heart is measured, interpreted, and printed out for the doctor's info ...
... procedures used to evaluate the heart. Electrodes (small, plastic patches) are placed at certain locations on the chest and abdomen. When the electrodes are connected to an ECG machine by lead wires, the electrical activity of the heart is measured, interpreted, and printed out for the doctor's info ...
Poor R Wave Progression
... Normal Axis The normal axis is from approx –29 to 105-110 degrees, depending on the source of info. The patient’s age should, however be taken into account. As people age, the axis tends to shift leftward,so an axis of 90+ degrees may be normal in a younger patient, but abnormal in an elderly patie ...
... Normal Axis The normal axis is from approx –29 to 105-110 degrees, depending on the source of info. The patient’s age should, however be taken into account. As people age, the axis tends to shift leftward,so an axis of 90+ degrees may be normal in a younger patient, but abnormal in an elderly patie ...
ECG interpretations
... When an impulse originates anywhere in the atria (SA node, atrial cells, AV node, Bundle of His) and then is conducted normally through the ventricles, the QRS will be narrow ...
... When an impulse originates anywhere in the atria (SA node, atrial cells, AV node, Bundle of His) and then is conducted normally through the ventricles, the QRS will be narrow ...
ELECTROCARDIOGRAM (ECG or EKG)
... Small sticky pads (electrodes) are placed on your upper body and legs to obtain an “electrical picture” of the heart. It is printed out on a special graph paper for the cardiologist to interpret. This common, routine and frequently used non-invasive test tells the doctors about your heart rhythm (ho ...
... Small sticky pads (electrodes) are placed on your upper body and legs to obtain an “electrical picture” of the heart. It is printed out on a special graph paper for the cardiologist to interpret. This common, routine and frequently used non-invasive test tells the doctors about your heart rhythm (ho ...
intro_ecg
... impulse is spreading from the ventricles to the atria in a retrograde manner.b. Determine if the PR interval is of normal length (0.12-0.2 seconds).c. Examine the QRS complexes and determine if the QRS complex is wide or narrow. Narrow QRS complexes (less than 0.12 sec) indicate that the rhythm is s ...
... impulse is spreading from the ventricles to the atria in a retrograde manner.b. Determine if the PR interval is of normal length (0.12-0.2 seconds).c. Examine the QRS complexes and determine if the QRS complex is wide or narrow. Narrow QRS complexes (less than 0.12 sec) indicate that the rhythm is s ...
12-Lead EKG Interpretation - Oregon Society of Physician Assistants
... But Lead V1 is our single best lead. Use Lead V3 for QT interval measurement “A Q in III is free.” (isolated Q in Lead III) Half of reading an ECG is knowing where the + electrode is. • The other 80% is: finding the P wave! ...
... But Lead V1 is our single best lead. Use Lead V3 for QT interval measurement “A Q in III is free.” (isolated Q in Lead III) Half of reading an ECG is knowing where the + electrode is. • The other 80% is: finding the P wave! ...
ACUTE ARTERIAL OCCLUSION Acute Limb Ischemia ))
... embolization and the most common source is the heart and mainly due to AF. The most common site of embolization is the lower limbs. Early intervention may restore limb function and prevent irreversible ischemic changes. Delay of intervention leads to development of irreversible ischemic changes ( ga ...
... embolization and the most common source is the heart and mainly due to AF. The most common site of embolization is the lower limbs. Early intervention may restore limb function and prevent irreversible ischemic changes. Delay of intervention leads to development of irreversible ischemic changes ( ga ...
Laboratory 15 Electrocardiograph Lab (ECG) and Heart Sounds
... be consistent in size and timing. Changes in the size and timing of the waves can be indicative of problems with the heart’s conduction system. Caution: Remember that what we are doing in lab ...
... be consistent in size and timing. Changes in the size and timing of the waves can be indicative of problems with the heart’s conduction system. Caution: Remember that what we are doing in lab ...
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.