Exam (elaborations)

EKG Final Exam Questions and Correct Answer

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Course
EKG

Institution
EKG

EKG Final Exam Questions and Correct AnswerEKG Final Exam Questions and Correct AnswerEKG Final Exam Questions and Correct AnswerEKG Final Exam Questions and Correct AnswerEKG Final Exam Questions and Correct AnswerEKG Final Exam Questions and Correct Answer

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Uploaded on August 22, 2024
Number of pages 25
Written in 2024/2025
Type Exam (elaborations)
Contains Questions & answers

ekg final exam questions and correct answer

Institution EKG
Course EKG

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Elscores 8/18/2024 6:16:34 PM
EKG Final Exam Questions and Correct
Answer
A branch of the _______ supplies the right atrium and right ventricle with blood

~: right coronary artery (RCA)

Stimulation of parasympathetic nerve fibers typically results in what action?

~: Slowed conduction through the atrioventricular (AV) node

The contribution of blood that is added to the ventricles and results from atrial contraction is

called:

~: atrial kick

Semilunar Valves include:

~: pulmonary valve and aortic valve

The left main coronary artery divides into the

~: LAD and Cx branches

_____ cells are specialized cells of the electrical conduction system responsible for the

spontaneous generation and conduction of electrical impulses.

~: Pacemaker

The absolute refractory period beings with....

, Elscores 8/18/2024 6:16:34 PM
~: begins with the onset of the QRS complex and terminates at approximately the apex of the T
wave

T/F: The QT interval represents the time from initial depolarization of the ventricles to the

end of ventricular repolarization

~: true

How do you determine whether the atrial rhythm on an ECG tracing is regular or irregular?

~: compare P-P intervals

Which ECG leads use two distinct electrodes, one of which is positive and the other

negative?

~: leads I, II, and III

In sinus arrhythmia, a gradual decreasing of the heart rate is usually associated with?

~: expiration

An ECG rhythm strip shows a ventricular rate of 46 bpm, a regular rhythm, a PR interval of

0.14 second, a QRS duration of 0.06 second, and one upright P wave before each QRS. This

rhythm is:

~: sinus bradycardia

SA block is a disorder of ______, and sinus arrest is a disorder of impulse _______.

~: SA block is a disorder of conduction
Sinus arrest is a disorder of formation

, Elscores 8/18/2024 6:16:34 PM

Signs and symptoms experienced during a tachydysrhythmia are usually primarily related to:

~: decreased ventricular filling time and stroke volume

Example that reflects ectopic (latent) pacemaker:

~: the AV junction and ventricles

A wandering atrial pacemaker rhythm with a ventricular rate of 60 to 100 bpm may also be

referred to as:

~: multiform atrial rhythm

The most common type of supraventricular tachycardia (SVT) is?

~: AVNRT-- AV nodal reentrant tachycardia

If the onset or end of paroxysmal atrial tachycardia or paroxysmal supraventricular

tachycardia (PVST) is not observed on the ECG, the dysrhythmia is called:

~: SVT

paroxysmal means sudden onset

Most common sustained dysrhythmia in adults?

~: AFib

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