HCA Healthcare
Telemetry ECG Interpretation Illustrated Practice Exam
2026/2027 | Telemetry ECG/EKG Interpretation Q&A |
Nursing/Clinical Monitoring
Status: Original practice resource; not an official or reproduced HCA Healthcare examination.
40 questions | Suggested time: 60 minutes
Includes multiple-choice, SATA, prioritization, ordered-response, case-based, and image-based rhythm interpretation.
Image note: All ECG strips in this document are original stylized educational simulations created for practice. They are not patient
tracings and should not be used for clinical diagnosis.
Figure 1. Basic ECG landmarks used throughout the exam.
,Question 1
Which ECG component represents ventricular depolarization?
A. P wave
B. PR interval
C. QRS complex
D. T wave
Correct Answer: C. QRS complex
Rationale: The QRS complex represents ventricular depolarization. The P wave reflects atrial depolarization, the PR
interval reflects atrioventricular conduction time, and the T wave reflects ventricular repolarization.
Why the Other Options Are Incorrect:
A. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
B. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
D. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
Question 2
At standard ECG paper speed, one small horizontal box represents:
A. 0.02 second
B. 0.04 second
C. 0.10 second
D. 0.20 second
Correct Answer: B. 0.04 second
Rationale: At 25 mm/second, each 1-mm small box represents 0.04 second; five small boxes equal 0.20 second.
Why the Other Options Are Incorrect:
A. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
C. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
D. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
Question 3
Interpret the rhythm strip below.
Educational simulated rhythm strip.
A. Normal sinus rhythm
, B. Atrial fibrillation
C. Ventricular tachycardia
D. Complete heart block
Correct Answer: A. Normal sinus rhythm
Rationale: The strip is regular with a sinus P wave before each narrow QRS and a normal-rate pattern.
Why the Other Options Are Incorrect:
B. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
C. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
D. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
Question 4
Which rhythm is shown?
Educational simulated rhythm strip.
A. Sinus tachycardia
B. Sinus bradycardia
C. Junctional tachycardia
D. Atrial flutter
Correct Answer: B. Sinus bradycardia
Rationale: The rhythm retains sinus organization but the ventricular rate is below 60 beats/min.
Why the Other Options Are Incorrect:
A. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
C. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
D. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
Question 5
Which rhythm is shown?
Telemetry ECG Interpretation Illustrated Practice Exam
2026/2027 | Telemetry ECG/EKG Interpretation Q&A |
Nursing/Clinical Monitoring
Status: Original practice resource; not an official or reproduced HCA Healthcare examination.
40 questions | Suggested time: 60 minutes
Includes multiple-choice, SATA, prioritization, ordered-response, case-based, and image-based rhythm interpretation.
Image note: All ECG strips in this document are original stylized educational simulations created for practice. They are not patient
tracings and should not be used for clinical diagnosis.
Figure 1. Basic ECG landmarks used throughout the exam.
,Question 1
Which ECG component represents ventricular depolarization?
A. P wave
B. PR interval
C. QRS complex
D. T wave
Correct Answer: C. QRS complex
Rationale: The QRS complex represents ventricular depolarization. The P wave reflects atrial depolarization, the PR
interval reflects atrioventricular conduction time, and the T wave reflects ventricular repolarization.
Why the Other Options Are Incorrect:
A. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
B. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
D. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
Question 2
At standard ECG paper speed, one small horizontal box represents:
A. 0.02 second
B. 0.04 second
C. 0.10 second
D. 0.20 second
Correct Answer: B. 0.04 second
Rationale: At 25 mm/second, each 1-mm small box represents 0.04 second; five small boxes equal 0.20 second.
Why the Other Options Are Incorrect:
A. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
C. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
D. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
Question 3
Interpret the rhythm strip below.
Educational simulated rhythm strip.
A. Normal sinus rhythm
, B. Atrial fibrillation
C. Ventricular tachycardia
D. Complete heart block
Correct Answer: A. Normal sinus rhythm
Rationale: The strip is regular with a sinus P wave before each narrow QRS and a normal-rate pattern.
Why the Other Options Are Incorrect:
B. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
C. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
D. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
Question 4
Which rhythm is shown?
Educational simulated rhythm strip.
A. Sinus tachycardia
B. Sinus bradycardia
C. Junctional tachycardia
D. Atrial flutter
Correct Answer: B. Sinus bradycardia
Rationale: The rhythm retains sinus organization but the ventricular rate is below 60 beats/min.
Why the Other Options Are Incorrect:
A. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
C. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
D. Incorrect - This choice does not match the defining ECG pattern, calculation, or clinical response described in the question.
Question 5
Which rhythm is shown?
