Exam-style question
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Which feature of the ECG waveform indicates ventricular depolarization?.
- A.P wave
- B.QRS complex
- C.T wave
- D.U wave
Model answer
What a good answer should say
- QRS complex
Explanation
Why this works
The QRS complex represents the electrical activity of ventricular depolarization, which triggers ventricular contraction.
Common mistake
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