Thursday, October 30, 2014

Looks Normal

A young woman with anxiety comes in because she says her heart beat is irregular. Her father has a history of atrial fibrillation and her mother has a history of a heart attack. Her EKG is shown above.

Challenge: How would you read this EKG?

Image shown under Fair Use.

1 comment:

Craig Chen said...

Almost Normal

This is a physiologic sinus arrhythmia, a normal variant. It is associated with respiration, and the variation is due to changes in vagal tone. Note the P has a normal axis and is not premature.

Sources: UpToDate; ECG Wave Maven.