Hesi rn dosage calculation proctored exam
Calculation
The healthcare provider prescribes an IV solution of ampicillin 1 gram in 50 mL of D5W at 25 drops/minute. The nurse uses an infusion set that delivers 15 gtt/ml, and starts the infusion at 1900. Using the 24-hour clock, which time should the nurse anticipate the infusion to be completed? (Enter numeric value only.)
24hrs
Explanation & Rationale
Determine the volume infused per minute: Volume per minute (mL/minute) = Infusion rate (gtt/minute) / Drop factor (gtt/mL) = 25 gtt/minute / 15 gtt/mL = 5/3mL/minute Calculate the total infusion time in minutes: Total infusion time (minutes) = Total volume (mL) / Volume per minute (mL/minute) = 50 mL / (5/3) mL/minute = 50 × 3/5 minutes = 30 minutes Determine the completion time by adding the infusion time to the start time: Start time = 1900 Infusion time = 30 minutes Completion time = 1900 + 30 minutes = 1930
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