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Exam (elaborations)

NYU Langone EKG Exam Questions & Answers 2024/2025

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NYU Langone EKG Exam Questions & Answers 2024/2025 A delayed conduction of the AV node is manifested by a: a. prolonged PR interval b. widened QRS c. inverted P wave d. absence of a P wave - ANSWERSa. prolonged PR interval Which of the following waveforms represent the electrical event ...

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  • October 24, 2024
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NYU Langone EKG Exam Questions &
Answers 2024/2025

A delayed conduction of the AV node is manifested by a:

a. prolonged PR interval

b. widened QRS

c. inverted P wave

d. absence of a P wave - ANSWERSa. prolonged PR interval



Which of the following waveforms represent the electrical event that should initiate ventricular
contraction? - ANSWERSQRS complex



What is the normal range of the PR interval? - ANSWERS0.12-0.20



What is the normal length of the QRS interval? - ANSWERSbelow 0.12



What bpm rate is Sinus Tachycardia on a strip? - ANSWERS101-160 bpm



Which of the following describes a cells ability to spontaneously generate an impulse? -
ANSWERSautomaticity



Which node independently conducts a rate of 40-60 in an adult patient? - ANSWERSAV node



Which node independently conducts a rate of 60-100 in an adult patient? - ANSWERSSA node 'the
pacemaker of the heart'



What does the T-wave represent? - ANSWERSventricle repolarization

, What is the normal PQRS ratio? - ANSWERS1:1



What is the rate on a strip for sinus bradycardia? - ANSWERSless than 60 bpm



How do you calculate the rate on a strip? - ANSWERSmultiply the number of QRS's by 10

*pay attention to marks on strip to count right*



How to differentiate between normal sinus rhythm and sinus arrhythmia - ANSWERSthe distance
between each R (peak in QRS wave) is different and NOT the same within a strip



the activation of BLANK system causes in a release in epinephrine which results in an increase in heart
rate, blood pressure, and cardiac output - ANSWERSsympathetic nervous system



the QRS on an EKG corresponds to which of the following electrical events:

a. ventricular depolarization

b. ventricular repolarization

c. atrial repolarization

d. atrial depolarization - ANSWERSa. ventricular depolarization



Inefective atrial contractions are associated with which rhythm

a. normal sinus with PAC

b. normal sinus with PVC

c. ventricular fibrillation

d. atrial fibrillation - ANSWERSd. atrial fibrillation



How can you tell a strip with normal sinus rhythm with PAC (premature atrial contraction is occurring)? -
ANSWERSThe P wave comes EARLY.



P waves occur when the atria contracts followed by the QRS and T waves. You know a PAC is occurring
when the PQRST segment happens too soon after the last PQRST.

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