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

Answer and Explanation

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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Correct Answer is D

Explanation

A. A serum potassium level of 4.8 mEq/L is within the normal range and would not warrant withholding furosemide.
B. A serum sodium level of 140 mEq/L is within the normal range and would not warrant withholding furosemide.
C. An oxygen saturation of 95% is normal and would not warrant withholding furosemide.
D. A blood pressure of 80/40 mm/Hg is very low and administering furosemide, a diuretic, could further decrease blood pressure, posing a risk to the client. The nurse should withhold the medication and consult the provider.

A. Anemia B. Bradycardia C. Neutropenia D. Hypokalemia

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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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is collecting data from a client who has heart failure, prior to the administration of furosemide. For which of the following findings should the nurse withhold the medication?

Correct Answer is D

Explanation

A nurse caring for a client who has a new prescription for atenolol. For which of the following adverse effects should the nurse monitor the client?

Correct Answer is B

Explanation

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