A nurse is preparing to administer nifedipine 20 mg PO three times a day. Available is nifedipine 10 mg capsules. How many capsules should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["2"]
To calculate the number of capsules to be administered, the nurse should divide the prescribed dose (20 mg) by the strength of the available medication (10 mg/capsule): 20 mg / 10 mg/capsule = 2 capsules.
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Related Questions
Correct Answer is B
Explanation
The prescription for albuterol inhalation aerosol 8.5 g, inhale 1 to 2 puffs orally every 4 to 6 hr as needed for asthma is a PRN prescription. PRN stands for "pro re nata," which means "as needed" in Latin. This type of prescription allows the patient to take the medication as needed for a specific condition or symptom, rather than on a regular schedule.
Correct Answer is ["100"]
Explanation
First, we need to determine how many milligrams of vancomycin are in each milliliter of the reconstituted solution:
1 g = 1,000 mg
If we reconstitute 1 g of vancomycin powder for injection in enough diluent to make a final volume of 200 mL, the concentration will be:
1,000 mg ÷ 200 mL = 5 mg/mL
Now, we can calculate how many milliliters of the reconstituted solution the nurse should administer to deliver 500 mg of vancomycin:
500 mg ÷ 5 mg/mL = 100 mL
Therefore, the nurse should administer 100 mL of the reconstituted vancomycin solution via intermitent IV
bolus.
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