Question

A client is prescribed 125 mg of a medication through subcutaneous injection. The directions on the package insert state to reconstitute the medication with 2.5 mL of sterile water for injection to yield 1000 mg/2mL. How many mL of the medication should the nurse provide to the client? 0.25 ml 1.25 ml 0.125 ml 2.5 ml

Answer 1

ANSWER.

* Calculation of volume(ml) of drug required.

        Volume(ml) = Desired dose(D)/Dose in hand(H) * Quantity(Q)

Here

     Desired dose(D) = 125 mg.

     Dose in hand(H) = 1000 mg.

           Quantity(Q) = 2 ml.

As per above formula

    Volume(ml) of drug required = D/H * Q

                                                  = 125/1000 * 2

                                                  = 0.125 * 2

                                                  = 0.25 ml.