A nurse is preparing to administer 0.45% sodium chloride 1000 mL IV to infuse over 6 hr to a postpartum client. 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.)

Given: Total volume: 1000 mL Time: 6 hours Steps to solve: Determine the flow rate: Set up a proportion to solve for the unknown flow rate (X): 1000 mL/6 hr = X mL/1 hr Cross-multiplying gives us: 1000 mL x 1 hr = 6 hr x X mL Simplifying: 1000 = 6X Solving for X: X = 1000 / 6 = 166.67 mL/hr Round to the nearest whole number: 167 mL/hr.