Final answer:
To find the rate in gtt/min, multiply the order volume by the drop factor and divide it by the time in minutes.
Step-by-step explanation:
The given information states that the order is R/L 1500 mL in 12 hr and the drop factor is 15 gtt/mL. To find the rate in gtt/min, we need to calculate the total number of drops and then divide it by the time in minutes.
First, calculate the total number of drops by multiplying the order volume (1500 mL) by the drop factor (15 gtt/mL): 1500 mL * 15 gtt/mL = 22500 gtt.
Next, divide the total number of drops by the time in minutes (12 hr * 60 min/hr): 22500 gtt / 720 min = 31.25 gtt/min.
Therefore, the rate in gtt/min is approximately 31.25 gtt/min, so the correct answer is c) 31.25 gtt/min.