There's a million methods to it, I have my own way but I've seen some absolutely horrendous ways people have done them. What's yours?
Feb 1, '10
Quote from OkieICU_RN
I guess until you post your answer, I'm not sure what you are asking about calculating. What do you mean you don't trust the number unless there is a straight line? If there is I straight line, I don't think my line is in the right spot....there should be fluctuation in the waveform, correlating with the EKG.
Interested to see your calculating technique.
I wouldn't trust a straight line either (I suppose using trust before was a bad word choice), but if you've got a comatose patient who is as stiff as a wooden plank and you can't move their head, you gotta go with what it shows. We actually had a patient like that the other night, big ol' dude too. His CVP wave was as flat as could be, but yet if you gave him some extra fluids it did change. Whether it was accurate or not, who knows.
My method is to print 2 strips; CVP and respirations, CVP and one cardiac lead. Look at the CVP and respirations first and determine end inspiration or expiration. Then line up your CVP's from both strips, laying all of the waves on top of one another like a mirror image. Run your mark from the end inspiration/expiration on the respiratory strip and align the a-wave to the PR interval.
Last edit by detroitdano on Feb 1, '10