Question

9. The physician has prescribed 7 mg of Ephedrine. The drug is available in the medication cabinet as a 50 mg/1 ml vial. The pharmacy instructions state to add 9 ml of normal saline to the 1 ml of Ephedrine. The resulting solution contains 5 mg/ml of Ephedrine. How many ml of the diluted solution should the nurse draw up to provide the 7 mg dose? Show your work. Round your final answer to one decimal place. 10. Nalbuphine Hydrochloride 12 mg IV is prescribed by the nurse midwife during the active phase of labor for pain. The drug is available 20 mg/ml. How many ml are to be given? (Round the final answer to one decimal place.) 11. A postpartum non-breastfeeding mother is prescribed IV Metronidazole (Flagyl). The dose prescribed is 500 mg. to be given in an IV piggyback. The drug is available 500 mg/100 ml. The drug is to be given over 60 minutes. How will the nurse set the IV pump to provide the prescribed dose? (Round the final answer to the nearest whole ml.)

Answer 1

9 - after dilution- 5mg in 1 ml solution

So 1 mg in 1/ 5 ml solution

So 7 mg in - 1×7/5= 1.4 ml solution

10- 20mg in 1ml solution

1mg in = 1/20ml solution

12mg in = 12/20ml = .6 ml solution given