8/16/26, 8:39 AM APEX EKG Test EXAM QUESTIONS AND VERIFIED SOLUTIONS |2026/2027| Exam Questions & Answers Test || ELABORATED …
APEX EKG Test EXAM QUESTIONS AND VERIFIED
SOLUTIONS |2026/2027| Exam Questions & Answers
Test || ELABORATED &DETAILED ANSWERS!!
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Terms in this set (41)
EKG Grid 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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,8/16/26, 8:39 AM APEX EKG Test EXAM QUESTIONS AND VERIFIED SOLUTIONS |2026/2027| Exam Questions & Answers Test || ELABORATED …
The 6 Second Strip Method Least accurate, but quickest way to estimate rate
especially in irregular rhythms
EKG
EKG intervals
P Wave Atrial depolarization
PR Interval Normal is 0.12 to 0.20 seconds
Corresponds to the delay the AV node provides to
allow for ventricular filling
QRS Complex Normal is <0.12 seconds usually between 0.06 to 0.10
seconds
Ventricular depolarization
QT Interval Normal 0.36-0.46
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, 8/16/26, 8:39 AM APEX EKG Test EXAM QUESTIONS AND VERIFIED SOLUTIONS |2026/2027| Exam Questions & Answers Test || ELABORATED …
6 Steps for Rhythm Interpretation 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 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 Regularity: atrial and ventricular rate 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
https://quizlet.com/1199741133/apex-ekg-test-exam-questions-and-verified-solutions-20262027-exam-questions-answers-test-elaborated-detailed-an… 3/16
APEX EKG Test EXAM QUESTIONS AND VERIFIED
SOLUTIONS |2026/2027| Exam Questions & Answers
Test || ELABORATED &DETAILED ANSWERS!!
Add to calendar
Play your way to mastery with fun games
Match Blocks Charms NEW
Terms in this set (41)
EKG Grid 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
https://quizlet.com/1199741133/apex-ekg-test-exam-questions-and-verified-solutions-20262027-exam-questions-answers-test-elaborated-detailed-an… 1/16
,8/16/26, 8:39 AM APEX EKG Test EXAM QUESTIONS AND VERIFIED SOLUTIONS |2026/2027| Exam Questions & Answers Test || ELABORATED …
The 6 Second Strip Method Least accurate, but quickest way to estimate rate
especially in irregular rhythms
EKG
EKG intervals
P Wave Atrial depolarization
PR Interval Normal is 0.12 to 0.20 seconds
Corresponds to the delay the AV node provides to
allow for ventricular filling
QRS Complex Normal is <0.12 seconds usually between 0.06 to 0.10
seconds
Ventricular depolarization
QT Interval Normal 0.36-0.46
https://quizlet.com/1199741133/apex-ekg-test-exam-questions-and-verified-solutions-20262027-exam-questions-answers-test-elaborated-detailed-an… 2/16
, 8/16/26, 8:39 AM APEX EKG Test EXAM QUESTIONS AND VERIFIED SOLUTIONS |2026/2027| Exam Questions & Answers Test || ELABORATED …
6 Steps for Rhythm Interpretation 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 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 Regularity: atrial and ventricular rate 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
https://quizlet.com/1199741133/apex-ekg-test-exam-questions-and-verified-solutions-20262027-exam-questions-answers-test-elaborated-detailed-an… 3/16
