The doctor orders medication S2.5 mg/kg/day in two divided doses. Medication S is supplied 40mg/mL. The patient weighs 121 lbs. What will the nurse administer per dose? Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.
The Correct Answer is ["1.7"]
Let's calculate the dosage step-by-step:
1. Convert pounds to kilograms:
121 lbs/ 2.20462 kg = 54.9 kg
2. Calculate the total daily dosage:
2.5 mg/kg/day x 54.9 kg = 137.25 mg/day
3. Calculate the dosage per dose (divided equally twice daily):
137.33 mg/day / 2 doses ≈ 68.625 mg/dose
4. Determine the concentration of the medication:
40 mg/mL
5. Calculate the volume needed:
68.67 mg / 40 mg/mL = 1.7 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["11"]
Explanation
To determine the correct IV pump rate for the heparin infusion, follow these steps:
1. Calculate the concentration of heparin in units per mL:
The concentration is 25000 units in 250 mL.
Therefore, 25000 units / 250 mL = 100 units/mL.
2. Determine the infusion rate in mL per hour:
The ordered dose is 1100 units per hour.
Using the concentration, 1100 units/hr / 100 units/mL = 11 mL/hr.
Correct Answer is ["7"]
Explanation
To determine the correct IV pump rate for the insulin infusion, follow these steps:
1. Calculate the concentration of insulin in units per mL:
The concentration is 100 units in 100 mL.
Therefore, 100 units / 100 mL = 1 unit/mL.
2. Determine the infusion rate in mL per hour:
The ordered dose is 7 units per hour.
Using the concentration, 7 units/hr / 1 unit/mL = 7 mL/hr.
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