A 62-year-old woman with septic shock has a central venous catheter in the right internal jugular vein. CVP waveform analysis shows prominent 'v' wave...

Question

A 62-year-old woman with septic shock has a central venous catheter in the right internal jugular vein. CVP waveform analysis shows prominent 'v' waves. Echocardiography confirms severe tricuspid regurgitation with a dilated right ventricle. What haemodynamic consequence does significant tricuspid regurgitation have on CVP measurement?

Accepted Answer

CVP overestimates right ventricular preload

Answer

CVP becomes falsely low and unreliable

Answer

CVP accurately reflects left ventricular preload

Answer

CVP becomes negative during inspiration

Answer

CVP waveform becomes flat and featureless

uk-fficm MCQ (SBA): Haemodynamic Monitoring