Convert ML Into Units?! - Nursing Student Assistance - Allnurses

Convert mL into units?!

I'm practicing for my drug calc retake and there's another question that is plaguing me. 

Order: Heparin 28mL/hr

Available: 25,000units/500mL

What is the dose being delivered? ____units/hr

Again, I'm not looking for the answer as I already have it (1400units/hr)

I just need some help figuring out a conversion...one of these bogus sites said 40u=1ml

(28x40= 1120. 1120/25000x500=22.4) and another said 1 unit = .01ml. (28x.01=0.28. Which I already know from looking at it, it won't work.) So, they both don't work out. I have no idea where to go from here! Sigh. 

Can anyone point me in the right direction?! I BEG you! 

Tag » How Many Units Is A Ml