I'm in my final semester of nursing school and am unsure of one math problem. I've already conferred with other students and we have not reached a consensus. Hopefully someone here can enlighten us.
You find your pt's heparin drip running at 10cc/hr. concentration is 20,000 units in 500 mL D5W. How much hep is pt getting per hour? Simple enough, 400 units/hr. Here's where the uncertainty comes in: Is this within a therapeutic range? I would think yes because 20,000 units is a typical dose, but at that rate it would take 50 hours to receive it all. Is that too long of a time to be therapeutic (book says normally administered over 24hrs)? Wouldn't it depend on the individual pt's pTT? Or do I just forget the rate and look at the dose to determine if therapeutic? Please please point my thinking in the right direction. Thanks!