A nurse is preparing to administer ceftriaxone 500 mg via intermittent IV infusion over 30 min to a toddler. After reconstitution, the available concentration is ceftriaxone 500 mg/15 mL. 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.)