Nursing Students Student Assist
Published Feb 23, 2012
myprideandjoy
25 Posts
Hi i am reveiwing for an nclex pn exam can somebody please help me calculate the correct dosage for this question that i got from kaplan. There was an answer but i do not get the calculation.
The nurse receives an order to administer phenobarbital (luminal) gr ii PO to a 3 year old child. The label n the multi dose vial read 160 mg/ 5 cc. How many cc of phenobarbital should the nurse administer? thanks in advance!
Double-Helix, BSN, RN
3,377 Posts
This is a really outdated question, but still good to know, I suppose.
gr is an abbreviation for grain. Grains are a weight-based measurement that we very rarely use in the United States. ii is the roman numeral abbreviation for 2. So gr ii = 2 grains.
For conversion purposes, one grain = 60 mg.
So your question really reads like this: The nurse receives an order to administer phenobarbital (luminal) 120 mg PO to a 3 year old child. The label n the multi dose vial read 160 mg/ 5 cc. How many cc of phenobarbital should the nurse administer?
You should be able to calculate the answer based on your standard med math formula.
Esme12, ASN, BSN, RN
1 Article; 20,908 Posts
DosageHelp.com - Helping Nursing Students Learn Dosage Calculations
nursing calculators
http://www.davesems.com/files/drug_dose_calculations.pdf
These links will be VERY helpful.