EKG Exam NYU Langone Questions
and Verified 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
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:
a. ventricular depolarization
b. ventricular repolarization
c. atrial repolarization
d. atrial depolarization - <CORRECT ANSWER >>a. 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 - <CORRECT ANSWER >>d. atrial fibrillation
and Verified 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
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:
a. ventricular depolarization
b. ventricular repolarization
c. atrial repolarization
d. atrial depolarization - <CORRECT ANSWER >>a. 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 - <CORRECT ANSWER >>d. atrial fibrillation
