A preparing to administer vancomycin 500 mg via intermittent IV bolus to a client. Available is vancomycin powder for injection 1 g vial. The nurse reconstitutes the powder for a final concentration of vancomycin 5 mg/mL. How many mL should the nurse administer? (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 ["100"]
Determine the desired dosage:
The nurse needs to administer 500 mg of vancomycin.
Determine the volume per dose:
The concentration of the vancomycin solution is 5 mg/mL.
The nurse needs to administer 500 mg per dose.
To find the volume per dose, we can set up a proportion:
5 mg / 1 mL = 500 mg / x mL
Cross-multiplying gives us:
5x = 500
Dividing both sides by 5, we get:
x = 100 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["5.1"]
Explanation
First, convert the child's weight from pounds to kilograms: 64 lb / 2.205 lb/kg = 29.02 kg
Calculate the total daily dose of methylprednisolone needed: 7 mg/kg x 29.02 kg = 203.14 mg
Calculate the dose per administration: 203.14 mg / 2 = 101.57 mg
Calculate the volume of methylprednisolone to administer per dose: 101.57 mg / 20 mg/mL = 5.0785 mL
Round to the nearest tenth: 5.0785 mL rounded to the nearest tenth is 5.1 mL.
Correct Answer is ["1.8"]
Explanation
Convert the client's weight from pounds to kilograms:
There are 2.205 pounds in 1 kilogram.
154 lb = 154 lb / 2.205 lb/kg = 70 kg (rounded to the nearest whole number).
Determine the total dosage:
The client is prescribed 1 mg/kg of gentamicin.
The client weighs 70 kg.
The total dosage is 1 mg/kg x 70 kg = 70 mg.
Determine the volume per dose:
The gentamicin solution contains 40 mg per 1 mL.
The nurse needs to administer 70 mg per dose.
To find the volume per dose:
40 mg / 1 mL = 70 mg / x mL
Cross-multiplying gives us:
40x = 70
Dividing both sides by 40, we get:
x = 1.75 mL
Round the answer to the nearest tenth:
Rounding 1.75 to the nearest tenth gives us 1.8 mL.
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