APEX EKG Test Questions &
Answers Updated
2026/2027 Edition
Verified Answers Exam Ready 39 QUESTIONS
DOCUMENT OVERVIEW
This APEX EKG Test Questions & Answers document provides 39 EKG-focused questions
with pre-supplied correct answers and explanations, including diagrams. It serves as a
comprehensive study resource for mastering fundamental EKG interpretation. This material
is ideal for EKG certification preparation and thorough review.
TOPICS
EKG Fundamentals Q1–Q9
Normal Sinus Rhythms Q10–Q14
Atrial Rhythms Q15–Q21
Junctional Rhythms Q22–Q25
Ventricular Rhythms & Lethal Arrhythmias Q26–Q32
Heart Blocks & Pacemakers Q33–Q39
E XA M Q U EST I O N S
Q1 QUESTION 1 OF 39
EKG Grid
Page 1
, 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
Q2 QUESTION 2 OF 39
The 6 Second Strip Method
ANSWER
Least accurate, but quickest way to estimate rate especially in irregular rhythms
Q3 QUESTION 3 OF 39
EKG
Page 2
, ANSWER
[Image]
Q4 QUESTION 4 OF 39
EKG intervals
Page 3