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
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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