A 60-year-old man on ICU has a central venous catheter in the right internal jugular vein. The CVP trace shows absent 'a' waves and irregular 'cannon'...

Question

A 60-year-old man on ICU has a central venous catheter in the right internal jugular vein. The CVP trace shows absent 'a' waves and irregular 'cannon' waves. What is the most likely underlying cardiac rhythm?

Accepted Answer

Complete heart block with intermittent AV dissociation

Answer

Sinus rhythm

Answer

Atrial fibrillation

Answer

First-degree heart block

Answer

Atrial flutter

uk-fficm MCQ (SBA): CVP Waveform Analysis

A 60-year-old man on ICU has a central venous catheter in the right internal jugular vein. The CVP trace shows absent 'a' waves and irregular 'cannon' waves. What is the most likely underlying cardiac rhythm?