Answer :

The flow rate is 50 gtt/min when Order: 40 mEq KCI in 100 mL NS is needed over 40 min and tubing is 20 gtt/mL.

To calculate the flow rate in drops per minute (gtt/min):

  1. First, determine the total volume to be delivered: 100 mL.
  2. Next, convert the time into minutes: 40 minutes.
  3. Then, use the formula: Flow rate (gtt/min) = (Volume (mL) × Drop factor (gtt/mL)) / Time (min)
  4. Plug in the values: Flow rate (gtt/min) = (100 mL × 20 gtt/mL) / 40 min.
  5. Calculate: Flow rate (gtt/min) = 2000 gtt / 40 min = 50 gtt/min.

''Although your question is incomplete here is complete question:

Order: 40 mEq KCI in 100 mL NS is needed over 40 min. Tubing is 20 gtt/mL. What is the flow rate (gtt/min)? ''