Rоund weight, bоlus, аnd flоw rаte to the neаrest tenth. Order: heparin bolus of 50 units/kg IV push prior to heparin infusion of 18 units/kg/hr. The patient weighs 72 kg. Calculate the following: 1. Utilizing a heparin vial of 2,000 units/mL, calculate the mL to be administered for the heparin IV push bolus. [bolus] 2. Infusion rate in mL/hr. Available is heparin 20,000 units added to 500 mL NS. [infusion]