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
Related Questions
Correct Answer is A
Explanation
Rationale:
A. Observing the child's throat with a flashlight is necessary to detect any bleeding.
B. Giving the child small sips of water helps soothe the throat and promote hydration but it does not address the risk of bleeding as a complication of tonsillectomy.
C. Administering an analgesic may be indicated if the child is experiencing pain, but the throat should be assessed for any bleeding first.
D. Offering the child an ice collar may provide comfort, but assessing the throat for any bleeding is more essential.
Correct Answer is D
Explanation
Rationale:
A. Chlorothiazide is a diuretic and is not indicated during a seizure.
B. Holding the child down during a seizure can lead to injury and is not recommended. It's essential to ensure the child's safety by protecting the head from injury and removing any objects that could cause harm.
C. Placing the child in a prone position during a seizure can compromise their ability to breathe and is not recommended. Instead, the child should be placed in a safe position on their side to prevent aspiration.
D. Timing the duration of the seizure is crucial for medical management and documentation purposes. This action allows healthcare providers to assess the
severity of the seizure and determine the need for intervention or medication administration.
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