A nurse is preparing to administer lamivudine 150 mg PO BID. Available is lamivudine 100 mg tablets. How many tablets should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["1.5"]
Determine the desired dose per administration.
The nurse needs to administer 150 mg of lamivudine per dose.
Calculate the number of tablets per administration.
Each tablet contains 100 mg of lamivudine.
Number of tablets = Desired dose (mg) / Tablet strength (mg) = 150 mg / 100 mg/tablet = 1.5 tablets.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2"]
Explanation
Determine the dose per administration.
The total daily dose is 2 grams, which is 2000 mg.
The dose is divided into four doses, so the dose per administration is 2000 mg / 4 = 500 mg.
Calculate the number of capsules per administration.
Each capsule contains 250 mg of tetracycline.
Number of capsules = Dose per administration (mg) / Capsule strength (mg) = 500 mg / 250 mg/capsule = 2 capsules.
Correct Answer is ["7.5"]
Explanation
Determine the desired dose.
The nurse needs to administer 75 mg of diphenhydramine.
Calculate the available dose per 2.5 mL.
The available diphenhydramine is 25 mg/2.5 mL.
Calculate the volume to be administered.
Volume = Desired dose (mg) / Concentration (mg/2.5 mL) = 75 mg / (25 mg/2.5 mL) = 75 mg x (2.5 mL/25 mg) = 7.5 mL
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