Sinus Rhythms

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Last updated 5:23 PM on 8/25/26
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4 Terms

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What is normal sinus rhythm?

Regular rhythm originating from the SA node at 60–100 bpm.

2
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What is sinus bradycardia?

Sinus rhythm <60 bpm.

3
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What is sinus tachycardia?

Sinus rhythm >100 bpm.

4
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What is sinus arrhythmia?

Sinus rhythm with slight beat-to-beat variation due to changes in SA-node impulse formation.