A patient is to be given 35 mg of Demerol every 4 hours you have Demerol 50 mg in stock how many milliliters should be given per dose

We have 50 mg i.e. 5 ml of Demerol we give 35 mg or 3.5 ml of Demerol per dose.

Explanation:

DEMEROL (meperidine hydro-chloride, USP) Tablet and Oral Solution are opioid agonists. DEMEROL Tablets are available as 50 mg and 100 mg Tablets for oral administration. The chemical name is 4-Piperidinecarboxylic acid, 1-methyl-4-phenyl-,ethyl ester, hydro chloride. The 50 mg is a scored tablet and has a stylized “W” on one side and “D” over “35” on the other side.  Here we have , 35 mg of Demerol to be given in 4 hours we have 50 mg of Demerol . We know that 10mg/ml is required , so for 35 mg we have 3.5 ml required per dose . Since, we have 50 mg i.e. 5 ml of Demerol we give 35 mg or 3.5 ml of Demerol per dose.

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