a. Patient's daily maintenance requirements.

b. Volume losses prior to therapy.

c. Concurrent losses; gastric suction, vomiting, or diarrhea.

d. Patient's metabolic requirements.

a. **I.V. Formula.**

The order is for D5 1/2NS 1000 ml to be infused over eight

hours. Calculate the infusion rate using an I.V. set calibrated

to deliver 20 gtts/ml.

Volume (ml) x drop factor (gtts/ml)

Time (minutes)

1000 ml x 20 gtts/ml

480

20,000 = 41.67 = 42 gtts/min.

480

over the next 10 hours. The drop factor of the tubing is

15 gtts/ml. Determine the rate in gtts/min.

1000 ml x 15 gtts/ml

600 minutes

15,000 = 25 gtts/min.

600

The order is to infuse D5 1/2NS at 125 ml/hr for the next

24 hours. The I.V. administration set is calibrated 20 gtts/ml.

Calculate the infusion rate.

MD0904

2-54

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