A nurse is preparing to administer 1,000 mL of lactated Ringer's IV over 6 hr. The drop factor of the manual IV tubing is 10 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Use the formula: Flow rate (gtt/min) = (Volume to infuse × Drop factor) ÷ Time (minutes) Convert hours to minutes: 6 hr × 60 min/hr = 360 min Flow rate = (1,000 mL × 10 gtt/mL) ÷ 360 min Flow rate = 10,000 ÷ 360 Flow rate ≈ 27.78 Round to the nearest whole number: 28 gtt/min