A nurse is caring for a client is who has a deep vein thrombosis and is prescribed heparin by continuous lV infusion at 1,200 units/hr. Available is heparin 25,000 units 250 mL D5W. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest tenth/whole number. Use a leading zero if it applies. Do not use a trailing zero.)