Question

1. The primary care provider has prescribed 9 mg of ephedrine. The drug is available in the medication cabinet as a vial containing 50 mg of Ephedrine in 1 ml. The pharmacy instructions state to add 9 ml of normal saline to the 1ml of Ephedrine. The resulting solution contains 5mg/ml of Ephedrine. How many ml of the diluted solution should the nurse draw up to provide the 9 mg dose? Round your final answer to one decimal place. Type your final answer and label. Please and thank you!

2. The primary care provider has prescribed Nalbuphine 16 mg IV for pain during labor. One vial of Nalbuphine contains 20 mg/ml. How many ml will the nurse administer? Round your final answer to one decimal place. Type your final answer and label. Please and thank you!

Answer 1

1. Order dose 9 mg of ephedrine.

available drug 50 mg of Ephedrine in 1 ml. The pharmacy instructions state to add 9 ml of normal saline to the 1ml of Ephedrine to get 5mg/ml of Ephedrine.

So, now the available drug is 5mg/ml

9mg = 5 mg/ml = 1.8ml

Answer - The nurse should draw 1.8 ml to provide 9 mg of ephedrine.

2.

Order dose Nalbuphine 16 mg IV for pain during labor.

available drug 20 mg/ml.

16 mg - 20mg/ml = 0.8ml

Answer - The nurse will administer 0.8 ml of Nalbuphine.