A nurse is preparing to administer furosemide 1 mg/kg IV bolus to a preschooler who weighs 36 lb. Available is furosemide injection 10 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if applicable. Do not use a trailing zero.)
The Correct Answer is ["1.6"]
To calculate this, first convert the preschooler's weight from pounds to kilograms: 36 lb * (1 kg / 2.2 lb) = 16.36 kg.
Then, calculate the dose of furosemide in mg: 1 mg/kg * 16.36 kg = 16.36 mg.
Finally, divide the dose in mg by the concentration of the furosemide injection to find the volume to administer: 16.36 mg / (10 mg/mL) = 1.636 mL/dose, which rounds to 1.6 mL when rounded to the nearest tenth.
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Related Questions
Correct Answer is ["0.9"]
Explanation
To find out how many mL of gentamicin the nurse should administer, we need to set up a proportion. If 40 mg of gentamicin is equivalent to 1 mL, then 36 mg of gentamicin is equivalent to x mL.
The proportion can be writen as 40/1 = 36/x. Solving for x, we get x = (36 * 1) / 40 = 0.9 mL.
The answer is rounded to the nearest tenth as instructed.
Correct Answer is ["0.48"]
Explanation
To calculate this, first convert the child's weight from pounds to kilograms: 70 lb * (1 kg / 2.2 lb) = 31.82 kg. Then, calculate the total daily dose of ephedrine in mg: 3 mg/kg/day * 31.82 kg/day = 95.45 mg/day.
Since the daily dose is divided into equal doses every 6 hours, calculate the dose per administration: 95.45 mg/day / (24 hr/day / 6 hr/dose) = 23.86 mg/dose.
Finally, divide the dose in mg by the concentration of the ephedrine injection to find the volume to administer: 23.86 mg / (50 mg/mL) = 0.477 mL, which rounds to 0.48mL when rounded to the nearest hundredth.
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