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 ["0.8"]
Explanation
Convert the child's weight from pounds to kilograms:
There are 2.205 pounds in 1 kilogram.
68 lb = 68 lb / 2.205 lb/kg = 30.86 kg (rounded to two decimal places).
Determine the total dosage:
The child is prescribed 1.25 mg/kg of diphenhydramine.
The child weighs 30.86 kg.
The total dosage is 1.25 mg/kg x 30.86 kg = 38.575 mg.
Determine the volume per dose:
The diphenhydramine injection contains 50 mg per 1 mL.
The nurse needs to administer 38.575 mg per dose.
To find the volume per dose, we can set up a proportion:
50 mg / 1 mL = 38.575 mg / x mL
Cross-multiplying gives us:
50x = 38.575
Dividing both sides by 50, we get:
x = 0.7715 mL
Round the answer to the nearest tenth:
Rounding 0.7715 to the nearest tenth gives us 0.8 mL.
Correct Answer is ["0.5"]
Explanation
Determine the desired dosage:
The nurse needs to administer 100 mg of amoxicillin.
Determine the volume per dose:
The amoxicillin suspension contains 200 mg per 5 mL.
The nurse needs to administer 100 mg per dose.
To find the volume per dose:
200 mg / 5 mL = 100 mg / x mL
Cross-multiplying gives us:
200x = 500
Dividing both sides by 200, we get:
x = 2.5 mL
Convert mL to tsp:
There are approximately 5 mL in 1 teaspoon (tsp).
So, 2.5 mL is equal to 2.5 mL / 5 mL/tsp = 0.5 tsp.
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