EKG Exam NYU Langone 2026
Questions and Answers
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 - Correct answer-a. prolonged PR interval
Which of the following waveforms represent the electrical event that should
initiate ventricular contraction? - Correct answer-QRS complex
What is the normal range of the PR interval? - Correct answer-0.12-0.20
What is the normal length of the QRS interval? - Correct answer-below 0.12
What bpm rate is Sinus Tachycardia on a strip? - Correct answer-101-160 bpm
Which of the following describes a cells ability to spontaneously generate an
impulse? - Correct answer-automaticity
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, Which node independently conducts a rate of 40-60 in an adult patient? - Correct
answer-AV node
Which node independently conducts a rate of 60-100 in an adult patient? - Correct
answer-SA node 'the pacemaker of the heart'
What does the T-wave represent? - Correct answer-ventricle repolarization
What is the normal PQRS ratio? - Correct answer-1:1
What is the rate on a strip for sinus bradycardia? - Correct answer-less than 60 bpm
How do you calculate the rate on a strip? - Correct answer-multiply 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 - Correct
answer-the 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 - Correct answer-
sympathetic nervous system
the QRS on an EKG corresponds to which of the following electrical events:
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Questions and Answers
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 - Correct answer-a. prolonged PR interval
Which of the following waveforms represent the electrical event that should
initiate ventricular contraction? - Correct answer-QRS complex
What is the normal range of the PR interval? - Correct answer-0.12-0.20
What is the normal length of the QRS interval? - Correct answer-below 0.12
What bpm rate is Sinus Tachycardia on a strip? - Correct answer-101-160 bpm
Which of the following describes a cells ability to spontaneously generate an
impulse? - Correct answer-automaticity
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, Which node independently conducts a rate of 40-60 in an adult patient? - Correct
answer-AV node
Which node independently conducts a rate of 60-100 in an adult patient? - Correct
answer-SA node 'the pacemaker of the heart'
What does the T-wave represent? - Correct answer-ventricle repolarization
What is the normal PQRS ratio? - Correct answer-1:1
What is the rate on a strip for sinus bradycardia? - Correct answer-less than 60 bpm
How do you calculate the rate on a strip? - Correct answer-multiply 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 - Correct
answer-the 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 - Correct answer-
sympathetic nervous system
the QRS on an EKG corresponds to which of the following electrical events:
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