Question

Give oxacillin 250 mg Iq4h. Available: see label below. Set and solution: 100 ml bag of D5W and a set with a 20 gtt/mL drop factor Instructions: infuse over 30 minutes. NOC 0015-7981-20 EQUIVALENT TO 1 gram OXACILLIN OXACILLIN SODIUM FOR INJECTION, USP Buffered-For IM or IV Use CAUTION: Federal law prohibits dispensing without prescription. PAPOTHECON 798120DAL-2 This vial contains oxacillin sodium monohydrate equivalent to 1 gram oxacillin and 20 mg dibasic sodium phosphate. Add 5.7 ml Sterile Water for Injection, USP. Each 1.5 mL contains 250 mg oxacillin. Usual Dosago: Adults-250 mg to 500 mg Intramuscularly every 4 to 6 hours. See circular for intravenous use. READ ACCOMPANYING CIRCULAR Discard solution after 3 days at room temperature or 7 days under A Bristol-Myers Squibb Company refrigeration. APOTHECON Princeton, NJ 08540 USA Cont Exp. Dates What is the correct drug dose? What is the flow rate in gtt/min? (please give your answer with no space or comma example a.2 b. 50 would be 250) Selected Answer: ® [None Given] Correct Answer: 1.567 Answer range /-0 (1.567 - 1.567)

Answer 1

ANSWER.

a) Correct drug dose = 250 mg (q4hr).

b) Flow rate in gtt/min.

       Formula

           Flow rate(gtt/min) = Volume(ml) / Time(min) * Drop factor.

   Here

        Volume(ml) = 100 ml.

        Time(min) = 30 min.

        Drop factor (gtt/ml) = 20 gtt/ml.

As per above formula

      Flow rate(gtt/min) = 100 / 30 * 20

                                     = 3.33 * 20

                                     = 66.66 gtt/min.