Find the total volume to administer: Ordered: NS 21 gtt/min over 8 h via 10 gtt/mL tubing

Calculation: Given values: Flow rate = 21 gtt/min Infusion time = 8 hours Drop factor = 10 gtt/mL Convert the infusion time from hours to minutes. Infusion time in minutes = 8 hours × 60 minutes/hour = 480 minutes. Calculate the total volume in milliliters (mL). Total Volume (mL) = (Flow rate (gtt/min) × Time (min)) / Drop factor (gtt/mL) = (21 gtt/min × 480 min) / 10 gtt/mL = 10080 / 10 = 1008 mL.