Absolute confirmation of placement of a central venous pressure catheter is done with which of the following?
A) Chest X-ray
B) Checking the centimeter mark
C) Ensuring appropriate waveform
D) Draᴡing a blood sample through the catheter

Question

Quizplus · Accepted Answer

A chest X-ray is used most often to confirm the placement of the central venous pressure (CVP)catheter.Checking the centimeter mark may be deceiving because the catheter may be curling up inside a vessel.Ensuring the waveform is not always accurate because other values may be low enough to appear to be a CVP measurement.Due to arterial blood gas acid-base changes and oxygenation problems,the blood sample drawn may appear to be mixed venous,when in fact it is not.

Absolute Confirmation of Placement of a Central Venous Pressure Catheter