The healthcare provider (HCP) prescribes 1 unit (350 mL) of packed red blood cells (PRBC) to infuse over 4 hours. The IV administration set delivers 15 gtt/mL. How many gtt/min should the nurse regulate the infusion? (Enter the numeric value only. Round to the nearest whole number.

Calculation: Identify the total volume, infusion time, and drop factor Total Volume: 350 mL Infusion Time: 4 hours (convert to minutes: 4 × 60 = 240 minutes) Drop Factor: 15 gtt/mL Calculate the drip rate Drip Rate (gtt/min) = (Total Volume × Drop Factor) ÷ Time in minutes Drip Rate = (350 × 15) ÷ 240 Drip Rate = 5250 ÷ 240 = 21.875 Round to the nearest whole number = 22 gtt/min