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APEX EKG TEST 2025 QUESTIONS AND ANSWERS.
EKG Grid - correct answer - Each small square (the smaller
lighter boxes within the big bold boxes) represents 0.04 seconds
Each larger square (the boxes within the bold lines) represents
0.2 seconds.
Each large square has 5 small squares across SO 0.04 X 5 = 0.2
seconds
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The 6 Second Strip Method - correct answer - Least accurate, but
quickest way to estimate rate especially in irregular rhythms
EKG - correct answer -
EKG intervals - correct answer -
P Wave - correct answer - Atrial depolarization
PR Interval - correct answer - Normal is 0.12 to 0.20 seconds
Corresponds to the delay the AV node provides to allow for
ventricular filling
QRS Complex - correct answer - Normal is <0.12 seconds usually
between 0.06 to 0.10 seconds
Ventricular depolarization
QT Interval - correct answer - Normal 0.36-0.46
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6 Steps for Rhythm Interpretation - correct answer - Determine
Regularity
Calculate the Rate
Evaluate the P wave
Measure the PRI
Evaluate the QRS Width
Evaluate the T wave and Calculate the QTI
Normal Sinus Rhythm - correct answer - Regularity: atrial and
ventricular rate are regular
Rate: 60 to 100 beats per minute
P wave: upright, smooth, round and uniform shape, one for every
QRS complex
PRI : 0.12 to 0.20 seconds
QRS: 0.06 to 0.10 seconds
QTI: 0.36 to 0.46 seconds
T wave: upright, smooth and round uniform shape
Sinus Bradycardia - correct answer - Regularity: atrial and
ventricular rate are regular
APEX EKG TEST 2025 QUESTIONS AND ANSWERS.
EKG Grid - correct answer - Each small square (the smaller
lighter boxes within the big bold boxes) represents 0.04 seconds
Each larger square (the boxes within the bold lines) represents
0.2 seconds.
Each large square has 5 small squares across SO 0.04 X 5 = 0.2
seconds
, Page | 2
The 6 Second Strip Method - correct answer - Least accurate, but
quickest way to estimate rate especially in irregular rhythms
EKG - correct answer -
EKG intervals - correct answer -
P Wave - correct answer - Atrial depolarization
PR Interval - correct answer - Normal is 0.12 to 0.20 seconds
Corresponds to the delay the AV node provides to allow for
ventricular filling
QRS Complex - correct answer - Normal is <0.12 seconds usually
between 0.06 to 0.10 seconds
Ventricular depolarization
QT Interval - correct answer - Normal 0.36-0.46
, Page | 3
6 Steps for Rhythm Interpretation - correct answer - Determine
Regularity
Calculate the Rate
Evaluate the P wave
Measure the PRI
Evaluate the QRS Width
Evaluate the T wave and Calculate the QTI
Normal Sinus Rhythm - correct answer - Regularity: atrial and
ventricular rate are regular
Rate: 60 to 100 beats per minute
P wave: upright, smooth, round and uniform shape, one for every
QRS complex
PRI : 0.12 to 0.20 seconds
QRS: 0.06 to 0.10 seconds
QTI: 0.36 to 0.46 seconds
T wave: upright, smooth and round uniform shape
Sinus Bradycardia - correct answer - Regularity: atrial and
ventricular rate are regular
