sinus rhythm
First Glance:
From across the room it looks like a tiny little sinus rhythm.
Discussion:
This is lead II, and everything about it looks normal if you take the 25% gain into consideration. The only thing I can say is the PR interval looks like its on the long side.
Final Impression?
Sinus rhythm @ ~95 bpm with borderline 1st degree AV block.
Management implications:
Nothing in particular.
The Take-home Point:
Unless you just told your patient a scary story, or the first year med student is putting in their first large bore IV, then 95 bpm is not really normal- especially at rest. So I wouldn’t call this ‘normal sinus rhythm’ personally. The books say it’s normal though.
One star strip. Students should identify the rhythm correctly.