A nurse is planning to administer diphenhydramine 1.25 mg/kg IV to a school-age child who weighs 55 lb. Available is diphenhydramine 50 mg/mL. How many ml should the nurse administer?
(Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["0.6"]
Rationale:
First, we need to convert the child's weight from pounds to kilograms. We can do this by dividing 55 by 2.2, which gives us 25 kg.
Next, we need to multiply the dose of diphenhydramine by the child's weight to get the total amount of medication needed. We can do this by multiplying 1.25 mg/kg by 25 kg, which gives us 31.25 mg.
Finally, we need to divide the total amount of medication by the concentration of the solution to get the volume to be administered. We can do this by dividing 31.25 mg by 50 mg/mL, which gives us 0.625 mL.
To round the answer to the nearest tenth, we look at the hundredths place and see that it is 5 or more, so we round up the tenths place by one. Therefore, the nurse should administer 0.6 mL of diphenhydramine IV to the child.
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Nursing Test Bank
Naxlex Comprehensive Predictor Exams
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Correct Answer is A
Explanation
Rationale:
A. Mood swings are a common side effect of prednisone and indicate an understanding of the potential adverse effects.
B. Routine blood tests are not typically required for children on maintenance prednisone therapy for asthma.
C. Prednisone should not be withheld before physical activity, as it is a maintenance medication for asthma.
D. Decreased appetite is a common side effect of prednisone but is not the best indicator of understanding the teaching.
Correct Answer is A
Explanation
Rationale:
A. A child with cystic fibrosis needs a high-calorie diet to meet their nutritional needs and prevent malnutrition.
B. Sweat chloride testing is used to diagnose cystic fibrosis, not to monitor its progression.
C. Chewing pancrelipase medication before eating is incorrect. Pancrelipase should be swallowed whole with meals to aid in digestion.
D. Administering dornase alfa every 4 hours for wheezing is not appropriate. Dornase alfa is typically used for cystic fibrosis to help thin mucus and improve lung function, but it is not indicated for wheezing, and the dosing frequency provided is incorrect.
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