A nurse is caring for an infant who weighs 12 lb and is prescribed cefuroxime sodium 15mg/kg PO every 12 hr. Available is cefuroxime sodium oral solution 125mg/5mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["3.3"]
Step 1: Convert pounds to kilograms
1 lb is approximately 0.453592 kg
So, 12 lb is 12 X 0.453592 kg = 5.443104 kg
Step 2: Calculate the total dose of cefuroxime
The prescribed dose is 15 mg/kg
The infant weighs 5.443104 kg
So, the total dose is 15 mg/kg X 5.443104 kg = 81.64656 mg
Step 3: Determine the volume of oral solution needed
The oral solution contains 125 mg/5 mL
We need to administer 81.64656 mg
To find the volume, we can set up a proportion:
125 mg / 5 mL = 81.64656 mg / x mL
Cross-multiply: 125x = 81.64656X 5
125x = 408.2328
x = 408.2328 / 125
x ≈ 3.27 mL
Therefore, the nurse should administer approximately 3.3 mL per dose.
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Related Questions
Correct Answer is B
Explanation
A) The nurse administers the prescribed dosage: Given the toddler weighs 20 kg and the recommended dosage range is 20 to 25 mg/kg/day, the total daily dosage required would be between 400 mg (20 kg × 20 mg/kg) and 500 mg (20 kg × 25 mg/kg). The prescribed dosage is 100 mg every 8 hours, which totals 300 mg/day (100 mg × 3 doses/day). This is below the recommended dosage range, indicating it might be insufficient.
B) The nurse determines the prescription is insufficient to achieve the desired effect: The prescribed dosage of 300 mg/day is less than the minimum recommended dosage of 400 mg/day. Therefore, it is appropriate to determine that the prescription may be insufficient for the required therapeutic effect.
C) The nurse contacts the pharmacist to adjust the prescribed dosage: While it is correct to recognize that the dosage might be insufficient, the nurse should first consult with the healthcare provider to adjust the prescription based on clinical judgment and specific patient needs rather than contacting the pharmacist directly.
D) The nurse determines the prescription is above the recommended dosage range: The prescribed dosage of 300 mg/day is actually below the recommended range of 400 to 500 mg/day. Therefore, it is incorrect to determine that the prescription is above the recommended range.
Correct Answer is ["56"]
Explanation
Convert hours to minutes: 3 hours X 60 minutes/hour = 180 minutes
Calculate the total number of drops: 500 mL X 20 gtt/mL = 10,000 gtt
Calculate the drip rate: 10,000 gtt / 180 minutes = 55.56 gtt/min
Round to the nearest whole number: 56gtt/min
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