A nurse is preparing to administer diphenhydramine 30 mg IM to a client. Available isdiphenhydramine injection 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"]
Step 1: Define the total amount of diphenhydramine needed Total dose = 30 mg
Step 2: Define the concentration of the available diphenhydramine injection Concentration = 50 mg/mL
Step 3: Calculate the volume of diphenhydramine injection needed Volume = Total dose ÷ Concentration Volume = 30 mg ÷ 50 mg/mL Volume = 0.6 mL
The nurse should administer 0.6 mL of diphenhydramine injection per dose
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The correct answer is choice B: Dosage.
Choice A rationale: The medication name is an essential component of a medication prescription, identifying the specific medication to be administered. In this case, the medication name is already provided as "Zopiclone."
Choice B rationale: Dosage is a crucial element of a medication prescription, indicating the amount of the medication to be administered. Although the prescription mentions "1 tablet," the strength or dosage of the Zopiclone tablet (e.g., 5 mg, 7.5 mg) is missing. The nurse should ask the provider to specify the dosage to ensure accurate and safe medication administration.
Choice C rationale: Frequency refers to how often the medication should be taken. The given prescription states "at bedtime," which specifies when the medication should be administered.
Choice D rationale: Route describes the method used to administer the medication. This prescription mentions the route as "PO," which stands for "by mouth" (per os).
In conclusion, a nurse should ensure that a medication prescription includes all essential components, such as medication name, dosage, frequency, and route. In this case, the dosage of Zopiclone is missing, and the nurse should ask the provider to add this information to the prescription to ensure accurate and safe administration of the medication.
Correct Answer is ["2.3"]
Explanation
Step 1: The dose to be administered is300 mg of phenobarbital sodium.
Step 2: The available phenobarbital sodium injection has a concentration of130 mg/mL. This means that for every 1 mL of the solution, there are 130 mg of phenobarbital sodium.
Step 3: To find out how many mL should be administered, we divide the dose by the concentration. So, 300 mg ÷ 130 mg/mL = 2.307692307692308 mL.
Step 4: Round the answer to the nearest tenth. So, 2.307692307692308 mL rounds to2.3 mL.
The nurse should administer 2.3 mL of phenobarbital sodium injection.
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