A nurse is preparing to administer cefazolin 1g intermittent IV bolus in 0.9% sodium chloride 250 mL over 30 min. The drop factor on the manual IV tubing is 10 gtt/mL. The nurse should set the manual IV flow rate 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.)

Step 1 is to identify the given values: Volume (V) = 250 mL Time (T) = 30 min Drop factor © = 10 gtt/mL Step 2 is to substitute these values into the formula for calculating the manual IV flow rate: Flow Rate ® = (V ÷ T) × C Step 3 is to perform the calculation: R = (250 mL ÷ 30 min) × 10 gtt/mL R = 83.33 gtt/min Since we need to round off to the nearest whole number, the flow rate is 83 gtt/min.