Which of the following correctly reflects the ECG criteria for a sinus rhythm?
A) More P waves than QRS complexes
B) P waves that look alike and upright in lead II,one before each QRS complex
C) Irregular atrial and ventricular rhythm
D) PR interval exceeding 0.20 seconds

Question

Quizplus · Accepted Answer

In a sinus rhythm, P waves should be upright and look alike in lead II, with one P wave preceding each QRS complex, indicating that the impulse originates from the sinoatrial node.

Which of the Following Correctly Reflects the ECG Criteria for a Sinus