APEX EKG TEST EXAM WITH CORRECT
ANSWERS 2025
1. EKG Each small square (the smaller lighter boxes within the big bold
Grid 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
2. The 6 Least accurate, but quickest way to estimate rate especially in
Second Strip irregular rhythms
Method
3.
EKG
4. EKG
intervals
5. P Atrial
Wave depolarization
6. PR Normal is 0.12 to 0.20 seconds
Interval Corresponds to the delay the AV node provides to allow for
ventricular filling
7. QRS Normal is <0.12 seconds usually between 0.06
Complex to 0.10 secondsVentricular depolarization
8. QT Normal 0.36-
Interval 0.46
9
. 1/
11
, APEX EKG TEST EXAM WITH CORRECT
ANSWERS
6 Steps for
2025
Determine
Regularity
Rhythm
tatio Interpre- Evaluate
Calculatethe
theP
R
nate wave Measure
the PRI Evaluate
the QRS Width
Evaluate the T
10. Normal R
wegularity
ave and: atrial and ventricular rate
Sinus Calculate
are regularthe QTI 60 to 100 beats
Rate:
Rhythm 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
11. Sinus Regularity: atrial and ventricular rate
Bradycar- dia are regular Rate: < 60 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
12. Sinus Tachycar- Regularity: atrial and ventricular rate
dia are regular Rate: >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
2/
11
ANSWERS 2025
1. EKG Each small square (the smaller lighter boxes within the big bold
Grid 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
2. The 6 Least accurate, but quickest way to estimate rate especially in
Second Strip irregular rhythms
Method
3.
EKG
4. EKG
intervals
5. P Atrial
Wave depolarization
6. PR Normal is 0.12 to 0.20 seconds
Interval Corresponds to the delay the AV node provides to allow for
ventricular filling
7. QRS Normal is <0.12 seconds usually between 0.06
Complex to 0.10 secondsVentricular depolarization
8. QT Normal 0.36-
Interval 0.46
9
. 1/
11
, APEX EKG TEST EXAM WITH CORRECT
ANSWERS
6 Steps for
2025
Determine
Regularity
Rhythm
tatio Interpre- Evaluate
Calculatethe
theP
R
nate wave Measure
the PRI Evaluate
the QRS Width
Evaluate the T
10. Normal R
wegularity
ave and: atrial and ventricular rate
Sinus Calculate
are regularthe QTI 60 to 100 beats
Rate:
Rhythm 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
11. Sinus Regularity: atrial and ventricular rate
Bradycar- dia are regular Rate: < 60 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
12. Sinus Tachycar- Regularity: atrial and ventricular rate
dia are regular Rate: >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
2/
11
