EKG Exam NYU Langone UPDATED
ACTUAL Questions and CORRECT
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
ACTUAL Questions and CORRECT
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
