ECG 38 A 70-year-old man with long-standing high blood pressure has had attacks of dizziness over several weeks. His pulse feels irregular but there are no other abnormal signs. This was his ECG. What does it show and what would you do? • The first nine beats with sinus rhythm and a ventricular rate of about 80/min • The PR interval in these nine beats slowly increases, from 240 ms to 360 ms • There is then a nonconducted P wave, followed by a conducted P wave with a PR interval of 360 ms
ECG 38
Answer 38
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