A nurse is preparing to administer lactated Ringer's 150 mL IV to infuse over 30 min. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Identify the given information: Volume of lactated Ringer's solution: 150 mL Infusion time: 30 minutes Convert the infusion time to hours: 30 minutes = 30/60 hours = 0.5 hours Calculate the infusion rate in mL/hr: Infusion rate = Volume / Time Substitute the values: Infusion rate = 150 mL / 0.5 hr Calculate the result: Infusion rate = 300 mL/hr