Drug calculation

Curious1alwys, BSN, RN · Jul 23, 2005

Man..........I just passed my dosage calc test today and da%! if I can answer that.

Maybe it just needs to be worded a different way??:stone :rotfl:

I'll let the smarter ones take a stab....:)

Editorial Team / Admin · Jul 23, 2005

I have another problem
Order: Ancef 500mg IV q 6h
Supply: Anceg 1g
Directions: Reconstitute with 2.5mL diluent to yield 3mL = 330mg/mL
Give:_____ :rotfl:

3:330::x:500

1500 divided by 330=4.545454.....or 4.5cc

Bad problem

loriangel14, RN · Jul 23, 2005

So the dose is 500mg and on hand you have 330mg/ml. You put dose over stock, that is 500mg over 330mg and multiply it by the vehicle(ml). 500 divided by 330 is 1.5 so you would give 1.5ml of the Ancef.

hollyster · Jul 23, 2005

So the dose is 500mg and on hand you have 330mg/ml. You put dose over stock, that is 500mg over 330mg and multiply it by the vehicle(ml). 500 divided by 330 is 1.5 so you would give 1.5ml of the Ancef.

1.5 ml That is what I came up with as well. D/S works so much easier for me.

Editorial Team / Admin · Jul 24, 2005

3:330::x:500
1500 divided by 330=4.545454.....or 4.5cc
Bad problem

Please just shoot me now......1.5

Curious1alwys, BSN, RN · Jul 25, 2005

Ok, I get it now. What is hard for me (but I just started with all this) is figuring out what information I need and what info I can leave out of the calc. It is so simple after you figure out that half of it you don't need to do the math.....:chuckle