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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Half-life refers to the time it takes for the concentration of the medication in the bloodstream to decrease by half, not the lowest serum concentration.
B. Peak refers to the highest concentration of the medication in the bloodstream after administration.
C. Trough is the lowest concentration of medication in the bloodstream, typically measured just before the next dose is due to ensure adequate drug levels.
D. Toxic level refers to a concentration at which the medication may cause adverse effects, not the lowest serum concentration.
Correct Answer is B
Explanation
A. Anemia is not a common adverse effect of atenolol, a beta-blocker primarily affecting heart rate and blood pressure.
B. Bradycardia (slow heart rate) is a known adverse effect of atenolol due to its action of slowing the heart rate to manage hypertension and other cardiac conditions.
C. Neutropenia (low neutrophil count) is not typically associated with atenolol use.
D. Hypokalemia (low potassium levels) is not a common adverse effect of atenolol; electrolyte imbalances are more associated with diuretics.
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