CET Study Guide 2026

Everything you need to pass the CET exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.

📋 CET Exam Format at a Glance

100
Questions
120 min
Time Limit
70%
Passing Score

📚 CET Topics to Study (69)

✍️ Sample CET Questions & Answers

1. What is the standard Bruce Protocol starting speed and grade for a treadmill stress test?
1.7 mph at 10% grade

Stage 1 of the standard Bruce Protocol begins at 1.7 mph and 10% grade, progressing in 3-minute stages.

2. An ECG showing a P-wave axis of +150° (inverted in leads I and aVF, upright in aVR) with a short PR interval most likely indicates:
Ectopic atrial rhythm originating from the low right atrium or coronary sinus

A P-wave axis of approximately +150° suggests atrial activation spreading superiorly and rightward, consistent with a low atrial or coronary sinus pacemaker rather than the sinus node.

3. Which of the following heart rate variability (HRV) parameters derived from Holter monitoring is a time-domain measure?
SDNN (standard deviation of all NN intervals)

SDNN is a time-domain HRV measure representing the standard deviation of normal-to-normal R-R intervals over the recording period.

4. What does a prolonged QTc interval on an ECG suggest clinically?
Increased risk of torsades de pointes and sudden cardiac death

A prolonged QTc indicates delayed ventricular repolarization, which increases susceptibility to dangerous ventricular arrhythmias.

5. During a pediatric ECG, the technician notices 60-Hz electrical interference on the tracing. The BEST intervention is:
Check electrode connections and remove sources of electrical interference

60-Hz artifact is caused by poor electrode contact or nearby electrical devices; checking and resecuring all electrode connections and removing electrical sources eliminates this interference.

6. Which antiarrhythmic drug class is most associated with causing a lupus-like syndrome AND QRS widening on ECG?
Class IA (procainamide)

Class IA drug procainamide can cause drug-induced lupus syndrome and, due to sodium channel blockade, prolongs the QRS complex.

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Your CET Study Path
1. Learn with Flashcards → 2. Drill Practice Tests → 3. Take the Full Exam Simulation
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