When hanging an IVPB of 100 ml D5W with 80 mg of Gentamycin to run over 30 minutes, which flow rate is correct when using microdrip tubing (60 gtts/ml)?

To determine the flow rate for administering an IVPB of 100 ml of D5W with 80 mg of Gentamycin over a period of 30 minutes using microdrip tubing (which delivers 60 drops per milliliter), you need to follow these steps:

1. Calculate the total volume to be infused: In this case, it is 100 ml.

2. Convert the infusion time from minutes to hours: Since the infusion will run over 30 minutes, you can express that time in hours if necessary for other calculations, but here we can keep it in minutes as we will be calculating gtts/min (drops per minute).

3. Determine the required flow rate in ml/min:

• The formula for flow rate is Total Volume (ml) / Time (min).

• In this case, 100 ml / 30 minutes = 3.33 ml/min.

4. Convert the flow rate from ml/min to gtts/min:

• Since the microdrip administration set delivers 60 gtts/ml, you multiply the flow rate in ml/min by the number of drops per milliliter.

• Thus, 3.33 ml/min x