The nurse has an order to give Lopressor 75 mg po. Lopressor is available in a 50 mg tablet. How many tablets should the nurse administer?
1.5 tablet
2 tablet
0.5 tablet
1 tablet
The Correct Answer is A
A. To achieve the prescribed dose of 75 mg and since Lopressor is available in 50 mg tablets, the nurse should administer 1 tablet (50 mg) plus another half tablet to make up the remaining 25 mg, totaling 1.5 tablets.
B. To achieve the prescribed dose of 75 mg and since Lopressor is available in 50 mg tablets, the nurse should administer 1 tablet (50 mg) plus another half tablet to make up the remaining 25 mg, totaling 1.5 tablets.
C. To achieve the prescribed dose of 75 mg and since Lopressor is available in 50 mg tablets, the nurse should administer 1 tablet (50 mg) plus another half tablet to make up the remaining 25 mg, totaling 1.5 tablets.
D. To achieve the prescribed dose of 75 mg and since Lopressor is available in 50 mg tablets, the nurse should administer 1 tablet (50 mg) plus another half tablet to make up the remaining 25 mg, totaling 1.5 tablets.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. 1 pint is actually approximately 473 mL, not 960 mL, making this conversion incorrect. Providing accurate conversion information is essential for ensuring proper medication dosing and patient safety.
B. 1 teaspoon (tsp) is equal to 5 mL, not 10 mL. Incorrect conversions can lead to dosing errors, potentially resulting in underdosing or overdosing.
C. 2 tablespoons (Tbsp) is actually equal to 30 mL, not 15 mL. Accurate conversions are crucial for patient safety, particularly in pediatric and elderly populations where precise dosing is critical.
D. 1 cup is correctly equal to 240 mL, making this conversion accurate. Correct conversions ensure that patients receive the appropriate volume of medication or fluid.
Correct Answer is A
Explanation
A. Dosing schedules are based on the medication's half-life to maintain a consistent therapeutic level in the bloodstream.
B. Medications are dosed at intervals to maintain therapeutic levels, not just after the last dose is gone.
C. Dosing schedules are determined by pharmacokinetics, not nurse convenience.
D. Consistent blood levels are usually desired for antibiotics, not fluctuating levels.
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