The healthcare provider prescribes 2000 mL of 5% dextrose and normal saline 0.45 for infusion over 24 hours. The drop factor is 15 gtt/mL. At how many drops per minute does the nurse set the flow rate?
a) 35 gtt/min
b) 40 gtt/min
c) 45 gtt/min
d) 50 gtt/min