In: Nursing
the order is for 1.5 mg of a drug IM q8h. The directions on the package insert state; "For IM administration reconstitution of the 1 mg powder with 1.9 mL yields 0.5 mg/ml. How many mL will you administer per dose?
ANSWER.
* Calculation of volume (ml) of drug required per dose.
Formula = Desired dose/Dose in hand * Quantity.
Here
Desired dose (D) = 1.5 mg.
Dose in hand (H) = 0.5 mg.
Quantity (Q) = 1 ml.
As per above formula
Volume of drug required = D/H * Q
= 1.5/0.5 * 1
= 3 ml.