The healthcare provider prescribes daptomycin 9 mg/kg/day IV for a child who weighs 44 pounds. How many mg of the medication should the nurse prepare to administer? (Enter numeric value only.)
The Correct Answer is ["180"]
Given:
Ordered dose of Daptomycin: 9 mg/kg/day
Child's weight: 44 pounds
Step 1: Convert child's weight from pounds to kilograms:
1 pound (lb) = 0.453592 kilograms (kg)
Child's weight in kg = 44 lbs x 0.453592 kg/lb = 19.958 kg
Step 2: Calculate the total daily dose of Daptomycin:
Total daily dose (mg) = Ordered dose (mg/kg/day) x Child's weight (kg)
Total daily dose (mg) = 9 mg/kg/day x 19.958 kg
Total daily dose (mg) = 179.622 mg
Round off to 180 mg
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.4"]
Explanation
Given:
Ordered dose of methylprednisolone succinate: 1.5 mg/kg/day IV in divided doses every 6 hours
Child's weight: 42 kg
Concentration of methylprednisolone succinate: 40 mg/mL
Step 1: Calculate the total daily dose of methylprednisolone succinate:
Total daily dose (mg) = Ordered dose (mg/kg/day) x Child's weight (kg)
Total daily dose (mg) = 1.5 mg/kg/day x 42 kg
Total daily dose (mg) = 63 mg/day
Step 2: Calculate the dose per administration:
Since the medication is given every 6 hours, there are 4 administrations per day.
Dose per administration (mg) = Total daily dose (mg) / Number of administrations per day
Dose per administration (mg) = 63 mg/day / 4 administrations/day
Dose per administration (mg) = 15.75 mg
Step 3: Calculate the volume to be administered per dose:
Volume (mL) = Dose per administration (mg) / Concentration (mg/mL)
Volume (mL) = 15.75 mg / 40 mg/mL
Volume (mL) = 0.39375 mL
Step 4: Round to the nearest tenth:
Volume (mL) ≈ 0.4 mL
Correct Answer is ["33"]
Explanation
Rationale:
Given:
Total dose of Potassium Chloride: 30 mEq
Volume of solution: 100 mL
Infusion rate: 10 mEq/hour
Step 1: Determine the concentration of Potassium Chloride in the solution:
Concentration (mEq/mL) = Total Potassium Chloride (mEq) / Volume of solution (mL)
Concentration (mEq/mL) = 30 mEq / 100 mL
Concentration (mEq/mL) = 0.3 mEq/mL
Step 2: Calculate the infusion rate in mL/hr:
Infusion rate (mL/hr) = Infusion rate (mEq/hr) / Concentration (mEq/mL)
Infusion rate (mL/hr) = 10 mEq/hr / 0.3 mEq/mL
Infusion rate (mL/hr) = 33.33 mL/hr
Step 3: Round to the nearest whole number:
Infusion rate (mL/hr) ≈ 33 mL/hr
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