A nurse is preparing to administer diphenhydramine 25 mg/kg IM to a child who weighs 68 lb. Available is diphenhydramine 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 ["15.4"]
To calculate the correct dose of diphenhydramine, we need to follow these steps:
-
Convert pounds to kilograms:
- 68 lb * 0.4536 kg/lb = 30.8 kg
-
Calculate the total dose in milligrams:
- 25 mg/kg * 30.8 kg = 770 mg
-
Determine the volume needed from the available concentration:
- 770 mg * (1 mL / 50 mg) = 15.4 mL
Therefore, the nurse should administer 15.4 mL of diphenhydramine.
Answer: 15.4 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["50"]
Explanation
Here's the correct breakdown:
Total daily dose: 200 mg
Frequency of administration: Every 6 hours (equally divided doses)
We divided the total daily dose by the number of doses per day to find the dose per administration:
Dose per administration = Total daily dose / Number of doses per day
= 200 mg / 4 doses/day
= 50 mg/dose
Correct Answer is ["75"]
Explanation
Based on the medication label in the image, the total volume of medication in the container following reconstitution will be 75 mL.
Here's how we can determine the answer:
Identify the reconstitution instructions: The label states "Add approximately 2/3 of the total water for reconstitution" and "Add remaining water, again shake vigorously." This indicates a two-step reconstitution process.
Look for volume information: Unfortunately, the label doesn't explicitly state the total volume of water required for reconstitution. However, it does mention the container size: "75mLd)". The "d" likely represents "container."
Therefore, the most reasonable answer based on the label information is 75 mL.
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