N4 IV Tips

Hanging an IV and regulating with just a clamp and gravity is tricky but "do-able".Using standard IV tubing (10gtt/cc):
100cc/hr = 17gtt/min
200cc/hr = 34gtt/min
300cc/hr = 51gtt/minetc...
If you can just remember that 17gtt/min = 100cc/hr, you'll easily be able to figure out different rates in your head (or on paper).

D/H x Q = X
D=Desired (dosage you wish to give)
H=Have (dosage or strength of concentration the med is available in).
Q= Quantity (preparation in which drug is available).
ie: Order is given for 375mg of Ampicillin p.o. T.I.D.The label on the RX contains 30ml, 250mg/5ml:
375mg (D)/ 250mg (H) x 5ml (Q) = 7.5ml
For IV to Gravity: volume/minutes x drop factor (tubing)= drip rate
For IV to Pump: volume/hour = drip volume

This tip is from the future nurses website, listed under cheat sheets.
http://www.efn.org/~nurses/