The physician has ordered 350 mg of ampicillin IM. The ampicillin is available as 1 g/5 mL. How many mLs does the nurse need to draw up for an IM injection?
The Correct Answer is ["1.75"]
To administer the correct dose of ampicillin IM, the nurse needs to calculate the amount of solution to draw up from the vial.
The vial contains 1 g of ampicillin in 5 mL of solution, which means that each mL has 200 mg of ampicillin.
To get 350 mg of ampicillin, the nurse needs to divide 350 by 200, which gives 1.75.
Therefore, the nurse needs to draw up 1.75 mL of solution for an IM injection.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","D","E"]
Explanation
A. Seal nonwashable items in a plastic bag for 5 days:
Lice cannot survive for an extended period without a host. While sealing items in a plastic bag may trap lice, it is not a recommended or practical preventive measure.
B. Machine wash all washable items in hot water and dry in a hot dryer for at least 20 minutes:
Washing and drying bed linens, clothing, and other washable items in hot water and a hot dryer help kill lice and their eggs.
C. Vacuum carpets, car seats, mattresses, and furniture:
Vacuuming helps remove any stray lice or eggs that may have fallen onto surfaces.
D. Discourage sharing of personal items:
Avoiding the sharing of personal items, such as combs, brushes, hats, and headphones, helps prevent the spread of lice.
E. Boil combs/brushes/hair accessories for 10 minutes or soak in a lice-killing product for 1 hour:
Boiling or using a lice-killing product helps ensure that combs, brushes, and hair accessories are free from lice.
Correct Answer is ["0.1696"]
Explanation
To calculate the ordered dose by the physician in mg/kg/dose, we need to convert the infant's weight from pounds and ounces to kilograms. One pound is equal to 0.4536 kg and one ounce is equal to 0.02835 kg. Therefore, the infant's weight in kilograms is:
6 x 0.4536 + 3 x 0.02835 = 2.948 kg
The ordered dose by the physician is 0.5 mg IV q 2 hours prn. To find the dose in mg/kg/dose, we divide the dose in mg by the weight in kg:
0.5 / 2.948 = 0.1696 mg/kg/dose
The recommended dosage for a child is 0.1-0.2 mg/kg/dose q2-4 hours prn. The ordered dose by the physician falls within this range, so it is a safe dosage for the infant.
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