Question

1. Heparin 4500 units is ordered subcut q.12h. A 2 multidose vial labeled heparin 5000 units / mL is available. How many mL will the nurse administer to the patient? ________ mL

2.

The order is for 500 mg of meropenem rapid intravenous injection q.8h. for a patient with bacterial meningitis. Meropenem must be further diluted prior to injection. The package insert says the following about the stability of the mixed solution:

For rapid intravenous injection: Reconstituted meropenem with Sterile Water for Injection maintains its potency at controlled room temperature between 15°C and 25°C (59°F and 77°F) for up to 2 hours or for up to 12 hours under refrigeration at 4°C (39°F).

The evening shift nurse is to give a dose of meropenem at 1600 on 9/16. The nurse finds a vial of diluted medication in the refrigerator labeled with the nurse’s initials and the date and time of mixing: 0430 on 9/16. Can the day shift nurse use the medication in the refrigerator?

Group of answer choices

A. No, the medication expires at 1630 on 9/16.

B. No, the medication expires at 4:00 p.m. on 9/16.

C. Yes, the medication does not expire until 1630 on 9/16.

D. Yes, the medication does not expire until 4:00 p.m. on 9/16.

3. The physician orders 1 g of ceftazidime for intermittent IV infusion. The nurse has a 1 g vial of ceftazidime with the following instructions for reconstitution:

Preparation of Solutions of Ceftazidime
Size	Amount of diluent to be added (mL)	Approximate available volume (mL)	Approximate ceftazidime concentration   (mg / mL)
Intramuscular 500 mg vial 1 g vial	1.5 3.0	1.8 3.6	280 280
Intravenous 500 mg vial 1 g vial 2 g vial	5.3 10.0 10.0	5.7 10.8 11.5	100 100 170

The nurse is correct to:

Group of answer choices

A. add 1.5 mL diluent to the powder and administer 3.57 mL to the patient.

B. add 3 mL diluent to the powder and administer 3.57 mL to the patient.

C. add 5.3 mL diluent to the powder and administer 10 mL to the patient.

D. add 10 mL diluent to the powder and administer 10 mL to the patient.

E. add 10 mL diluent to the powder and administer 5.88 mL to the patient.

Answer 1

1. Dose ordered =4500 units s/c

Dose in hand = 5000units/ml

How many ml has to be administered to the patient = 4500 × 1/5000

                                                                      = 0.9 ml

2. C.

Yes, the medication does not expire until 1630 on 9/16

3. D.

add 10 mL diluent to the powder and administer 10 mL to the patient.