CVP Waveform Tricuspid Regurgitation — FRCA Final MCQ

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ModerateIntensive Care MedicineCVP Waveform Tricuspid RegurgitationFRCA Final

In a patient with tricuspid regurgitation, the CVP waveform characteristically shows:

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Correct answer: D — Cannon 'a' waves

In tricuspid regurgitation, blood regurgitates from the RV back into the RA during systole, producing large systolic 'cv' waves (merging the 'c' wave with a prominent 'v' wave) and obliteration of the 'x' descent. The waveform shows 'ventricularisation' of the RA pressure trace in severe TR.

Reference: RCOA – 2023 – Cardiovascular monitoring: CVP waveform