Passed Version 2025/2026
Section 1: Introduction
This document includes the passed-version study guide and answer key for the KAISER
EKG Technician Test, valid for the 2025/2026 testing year.
It covers rhythm identification, ECG waveform interpretation, lead placement, and cardiac
conditions.
Clinically reviewed and tailored for exam success.
Section 2: Exam Questions and Answers
Four answer choices per question (A–D)
Correct answer highlighted
1 Question: What does the P wave on an ECG represent?
A. Ventricular depolarization
B. Atrial depolarization
C. Ventricular repolarization
D. Atrial repolarization
Correct Answer: B. Atrial depolarization
2 Question: Which lead placement is correct for the V1 electrode?
A. Right 5th intercostal space, midclavicular line
B. 4th intercostal space, right sternal border
C. 4th intercostal space, left sternal border
D. Left 5th intercostal space, midaxillary line
Correct Answer: B. 4th intercostal space, right sternal border
3 Question: What is the normal PR interval range on an ECG?
A. 0.12 to 0.20 seconds
B. 0.20 to 0.40 seconds
C. 0.08 to 0.12 seconds
D. 0.40 to 0.50 seconds
Correct Answer: A. 0.12 to 0.20 seconds
4 Question: Which rhythm is characterized by a sawtooth pattern on the ECG?
A. Atrial fibrillation
B. Atrial flutter
C. Ventricular tachycardia
D. Sinus bradycardia
Correct Answer: B. Atrial flutter
5 Question: What does a prolonged QT interval indicate?
A. Increased risk of bradycardia
B. Potential for ventricular arrhythmias
,C. Atrial enlargement
D. Normal cardiac conduction
Correct Answer: B. Potential for ventricular arrhythmias
6 Question: Where should the ground electrode be placed during a 12-lead ECG?
A. Right leg
B. Left arm
C. Right arm
D. Left leg
Correct Answer: A. Right leg
7 Question: What is the primary cause of ST elevation on an ECG?
A. Hypokalemia
B. Myocardial infarction
C. Hypercalcemia
D. Pericarditis
Correct Answer: B. Myocardial infarction
8 Question: Which wave represents ventricular repolarization?
A. P wave
B. QRS complex
C. T wave
D. U wave
Correct Answer: C. T wave
9 Question: What is the normal heart rate range for an adult in sinus rhythm?
A. 40-60 bpm
B. 60-100 bpm
C. 100-120 bpm
D. 120-150 bpm
Correct Answer: B. 60-100 bpm
10 Question: Which condition is associated with a widened QRS complex?
A. Atrial fibrillation
B. Bundle branch block
C. Sinus tachycardia
D. First-degree AV block
Correct Answer: B. Bundle branch block
11 Question: What should be done if a patient has a flat-line ECG?
A. Adjust the lead placement
B. Declare the patient deceased
C. Increase the gain on the machine
D. Administer defibrillation
Correct Answer: A. Adjust the lead placement
12 Question: Which lead is most likely to show changes in an inferior wall myocardial
infarction?
A. V1-V3
B. I, aVL
, C. II, III, aVF
D. V5-V6
Correct Answer: C. II, III, aVF
13 Question: What is the typical rate of ventricular tachycardia?
A. 20-40 bpm
B. 60-100 bpm
C. 100-250 bpm
D. 250-300 bpm
Correct Answer: C. 100-250 bpm
14 Question: Which artifact is caused by patient movement during an ECG?
A. Wandering baseline
B. 60-cycle interference
C. Muscle tremor
D. Electrode misplacement
Correct Answer: C. Muscle tremor
15 Question: What does a notched P wave suggest?
A. Left atrial enlargement
B. Right ventricular hypertrophy
C. Ventricular tachycardia
D. Sinus arrest
Correct Answer: A. Left atrial enlargement
16 Question: Which electrode placement is incorrect for a standard 12-lead ECG?
A. V4 at the 5th intercostal space, midclavicular line
B. V2 at the 4th intercostal space, left sternal border
C. V6 on the right midaxillary line
D. V5 at the 5th intercostal space, anterior axillary line
Correct Answer: C. V6 on the right midaxillary line
17 Question: What is the hallmark of atrial fibrillation on an ECG?
A. Regular R-R intervals
B. Absent P waves with irregular R-R intervals
C. Sawtooth pattern
D. Prolonged PR interval
Correct Answer: B. Absent P waves with irregular R-R intervals
18 Question: Which condition is associated with a delta wave on the ECG?
A. Wolff-Parkinson-White syndrome
B. Long QT syndrome
C. Brugada syndrome
D. Sick sinus syndrome
Correct Answer: A. Wolff-Parkinson-White syndrome
19 Question: What should be done if electrical interference appears on the ECG?
A. Reposition the patient
B. Check electrode connections
C. Increase the paper speed