A nurse is preparing to administer 250 mg of an antibiotic IM. Available is 3 g/5 mL. 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 ["0.4"]
Desired dose = 250 mg
Available concentration = 3 g/5 mL = 600 mg/5 mL = 120 mg/mL
Volume to administer = Desired dose / Concentration = 250 mg / 120 mg/mL = 2.08 mL
Rounded to the nearest tenth = 0.4 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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
Correct Answer is ["100"]
Explanation
To calculate the IV pump rate in mL/hr, follow these steps:
Total volume to be infused: 50 mL
Infusion time: 30 minutes
Convert the infusion time to hours:
30 minutes ÷ 60 minutes/hour = 0.5 hours
Calculate the IV pump rate:
Rate (mL/hr) = Total volume (mL) ÷ Infusion time (hours)
Rate = 50 mL ÷ 0.5 hours = 100 mL/hr
The nurse should set the IV pump to deliver 100 mL/hr.
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