EKG TEST QUESTIONS WITH
VERIFIED ANSWERS
All of the above - ANSWERSOne small square on ECG tracing paper _______.
Count the number of QRS complexes in 6 seconds and multiply by 10. -
ANSWERSWhat is the formula for calculating heart rate using the QRS complexes?
PAT - ANSWERSWhich of these conditions involves a regular heart rate that usually
ranges from 160 to 250 beats per minute?
Chest - ANSWERSWhere are the electrodes that precordial leads monitor placed?
Arrhythmia - ANSWERSWhat is the term for an abnormality in heart rhythm?
Left arm electrode - ANSWERSIf ECG artifacts are seen on Leads I and III, what is the
likely source of interference?
QRS - ANSWERSWhich component of the ECG cycle shows ventricular depolarization?
Systole - ANSWERSWhat is the contraction phase of a heartbeat?
Right leg (RL) - ANSWERSWhich limb electrode is used as a reference point and is not
part of the ECG recording?
V3 - ANSWERSWhich lead monitors an electrode midway between the V2 and V4
positions?
V5 - ANSWERSWhich lead monitors an electrode horizontal to V4 at the left anterior
axillary line?
V2 - ANSWERSWhich lead monitors an electrode at the 4th intercostal space on the left
side of the sternum?
Ventricular Fibrillation - ANSWERSWhich of these arrhythmias will result in death
without immediate treatment?
V4 - ANSWERSWhich lead monitors an electrode at the 5th intercostal space on the left
mid-clavicular line?
PAC - ANSWERSIn which condition do the atria produce an extra heartbeat that occurs
before the next one is expected?
VERIFIED ANSWERS
All of the above - ANSWERSOne small square on ECG tracing paper _______.
Count the number of QRS complexes in 6 seconds and multiply by 10. -
ANSWERSWhat is the formula for calculating heart rate using the QRS complexes?
PAT - ANSWERSWhich of these conditions involves a regular heart rate that usually
ranges from 160 to 250 beats per minute?
Chest - ANSWERSWhere are the electrodes that precordial leads monitor placed?
Arrhythmia - ANSWERSWhat is the term for an abnormality in heart rhythm?
Left arm electrode - ANSWERSIf ECG artifacts are seen on Leads I and III, what is the
likely source of interference?
QRS - ANSWERSWhich component of the ECG cycle shows ventricular depolarization?
Systole - ANSWERSWhat is the contraction phase of a heartbeat?
Right leg (RL) - ANSWERSWhich limb electrode is used as a reference point and is not
part of the ECG recording?
V3 - ANSWERSWhich lead monitors an electrode midway between the V2 and V4
positions?
V5 - ANSWERSWhich lead monitors an electrode horizontal to V4 at the left anterior
axillary line?
V2 - ANSWERSWhich lead monitors an electrode at the 4th intercostal space on the left
side of the sternum?
Ventricular Fibrillation - ANSWERSWhich of these arrhythmias will result in death
without immediate treatment?
V4 - ANSWERSWhich lead monitors an electrode at the 5th intercostal space on the left
mid-clavicular line?
PAC - ANSWERSIn which condition do the atria produce an extra heartbeat that occurs
before the next one is expected?
