7/18/26, 1:59 PM APEX EKG Test EXAM, || Questions and Answers (Verified Answers) Complete Test (Latest Update 2026) UPDATE!! Flashcards | …
APEX EKG Test EXAM, || Questions and Answers
(Verified Answers) Complete Test (Latest Update
2026) UPDATE!!
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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
The 6 Second Strip Method Least accurate, but quickest way to estimate rate
especially in irregular rhythms
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,7/18/26, 1:59 PM APEX EKG Test EXAM, || Questions and Answers (Verified Answers) Complete Test (Latest Update 2026) UPDATE!! Flashcards | …
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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, 7/18/26, 1:59 PM APEX EKG Test EXAM, || Questions and Answers (Verified Answers) Complete Test (Latest Update 2026) UPDATE!! Flashcards | …
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/1195289364/apex-ekg-test-exam-questions-and-answers-verified-answers-complete-test-latest-update-2026-update-flash-cards?n… 3/16
APEX EKG Test EXAM, || Questions and Answers
(Verified Answers) Complete Test (Latest Update
2026) UPDATE!!
Save Add to calendar
Play your way to mastery with fun games
Blast
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
The 6 Second Strip Method Least accurate, but quickest way to estimate rate
especially in irregular rhythms
https://quizlet.com/1195289364/apex-ekg-test-exam-questions-and-answers-verified-answers-complete-test-latest-update-2026-update-flash-cards?n… 1/16
,7/18/26, 1:59 PM APEX EKG Test EXAM, || Questions and Answers (Verified Answers) Complete Test (Latest Update 2026) UPDATE!! Flashcards | …
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/1195289364/apex-ekg-test-exam-questions-and-answers-verified-answers-complete-test-latest-update-2026-update-flash-cards?n… 2/16
, 7/18/26, 1:59 PM APEX EKG Test EXAM, || Questions and Answers (Verified Answers) Complete Test (Latest Update 2026) UPDATE!! Flashcards | …
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/1195289364/apex-ekg-test-exam-questions-and-answers-verified-answers-complete-test-latest-update-2026-update-flash-cards?n… 3/16
