OK, I'll give it a go.
As I understand it, a patient's blood level of Vanco will determine whether or not the Vanco is working. The Vanco level needs to be within range to kill the offending organism but not so high that it kills the patient's kidneys.
Peak level (highest serum concentration) is drawn about an hour or two after the infusion is completed. Trough (lowest serum concentration) is drawn about a half-hour before the scheduled dose.
I usually see a trough drawn a half-hour before the third or fourth dose and after that, random levels are drawn.
I always check with Pharmacy on questions like yours. Pharmacy usually looks at the labs and doses the patient in our hospital and they're very helpful.
Last edit by UM Review RN on Nov 25, '07
: Reason: Corrected peak draw time interval is post-infusion, not while Vanco is infusing. Sorry.
we usually draw labs with every 3rd vanco dose.
a trough is drawn 1 hr before the 3rd vanco dose, then we wait for the results come back from the lab. if the level is within normal limits we hang the 3rd dose, if it's too high we hold the dose and notify the physician.
the peak is drawn 1 hr after infusion of the 3rd dose.
Last edit by sonja77 on Nov 25, '07