The prescriber has ordered heparin IV bolus dose of 80 units…

The prescriber has ordered heparin IV bolus dose of 80 units/kg. The patient weight 56 kg. The pharmacy provides heparin in a concentration of 5000 units/ML in a vial of 10 ML. How many mL of heparin should the nurse up draw in a syringe?  ____________________ ML (if rounding is needed, round to the tenth)