Final answer:
The infusion rate should be regulated to approximately 78 gtts/minute for an IV drip of 0.9% sodium chloride to be administered at 750 ml over 4 hours with a set that delivers 60 gtts/ml.
Step-by-step explanation:
The student is asking how to calculate the infusion rate for an IV drip. To regulate an IV infusion of 0.9% sodium chloride 1,000 ml to be administered at 750 ml over 4 hours using a set that delivers 60 gtts/ml, you need to calculate the number of gtts/minute. The calculation is as follows:
- Total volume to be infused (V) = 750 ml
- Total time of infusion (T) = 4 hours or 240 minutes
- Drop factor of administration set (D) = 60 gtts/ml
- Flow rate (F) in gtts/minute = (V x D) / T = (750 ml x 60 gtts/ml) / 240 minutes = 18,750 gtts / 240 minutes = 78.125 gtts/minute
The nearest whole number to 78.125 is 78, so the nurse should regulate the infusion to approximately 78 gtts/minute.