RA pressure vs CVP

[whatnext]

I've always heard CVP referring to RA pressures, including the research I've read. I just recently moved and when I called the RA a CVP (talking about the proximal port of a PA catheter) I was corrected and told it is an RA, NOT CVP since the reading is coming from the right atrium. The research I've read refers to the CVP when referencing this waveform, as we are actually estimating the right ventricular end diastolic pressure.

Can anyone provide any input as to the difference between RA and CVP?

[mark_]

Proximal infusion port- CVP- cm h20

PA port- PASP/PADP- mm hg

try this site if you would like to melt your brain some:-)

http://www.edwards.com/Products/PACatheters/InvasiveHDMPhysPrincBookPDF.htm

:paw: