Hi could some one show me the formula for this question pls Vasopressin 5 units IM stat and repet 4h prn Supply 1ml vial that indicates 20mg/ml which of the following would deliver one doseAnswer0.50.25thankyou sue
melmarie23, MSN, RN 1,171 Posts Specializes in L&D/Maternity nursing. Feb 16, 2009 I am a ratio and proportion gal.Dose ordered=5 units (are you sure you didnt mean mg instead of units?)Dose on hand=20 mg/mL (or was it 20 units/mL and not mg/mL?)Anyways for sake of calculating it out:5/x mL=20/1 mL----> 20x=5 will give you x=0.25mL
crb613, BSN, RN 1,632 Posts Specializes in Med Surg/Tele/ER. Has 7 years experience. Feb 16, 2009 I do DA or dose ordered/dose avail X ml for the short stuff. Did you mean mg instead of units? If so.....5mg/20mg X ml=0.25ml (5/20=0.25 X 1ml= 0.25)
Daytonite, BSN, RN 4 Articles; 14,603 Posts Specializes in med/surg, telemetry, IV therapy, mgmt. Has 40 years experience. Feb 17, 2009 order: vasopressin 5 units im stat and repeat in 4hrs prn.supply: 1ml vial that indicates 20 units/ml.which of the following would deliver one dose?answer 0.5 ml, 0.25 ml use the formula: dose desired divided by dose on hand multiplied timesthe amount that the dose on hand comes in equals the amount to give. 5 units (dose desired)/20 units (dose on hand) x 1 ml (amount that the dose on hand come in) = 0.25 ml (amount to give)
