Answer

Atrial flutter with variable conduction: The flutter waves are most visible in the V1 rhythm strip. The flutter wave rate is approximately 300 per minute, and the ventricular response rate is approximately 150 per minute; this finding is a strong hint for the diagnosis of atrial flutter.

BACKGROUND

This patient presents with palpitations and slight dyspnea.

Hint

A lot of P waves seem to be present. What is the rate of these P waves?

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