A nurse is preparing to administer metoprolol 10 mg IV bolus to a client for heart rate control. Available is metoprolol injection 2.5 mg/mL. How many mL 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 ["4"]
Determine the desired dose.
The nurse needs to administer 10 mg of metoprolol.
Calculate the available dose per mL.
The available metoprolol is 2.5 mg/mL.
Calculate the volume to be administered.
Volume = Desired dose (mg) / Concentration (mg/mL) = 10 mg / 2.5 mg/mL = 4 mL
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["688"]
Explanation
Convert the patient's weight to kg.
The patient weighs 198 lb.
1 lb is approximately equal to 0.45 kg.
Patient's weight in kg = 198 lb * 0.45 kg/lb = 89.1 kg
Calculate the total daily dose.
Total daily dose = 15 mg/kg/day * 89.1 kg = 1336.5 mg/day
Calculate the dose per administration.
The dose is divided equally every 12 hours, so we divide the total daily dose by 2.
Dose per administration = 1336.5 mg/day / 2 = 668.25 mg
Round the dose to the nearest whole number.
Dose per administration = 668 mg
Correct Answer is ["4"]
Explanation
Determine the desired dose.
The nurse needs to administer 10 mg of metoprolol.
Calculate the available dose per mL.
The available metoprolol is 2.5 mg/mL.
Calculate the volume to be administered.
Volume = Desired dose (mg) / Concentration (mg/mL) = 10 mg / 2.5 mg/mL = 4 mL
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