Calculate the Milliliters Per Hour of Heparin Required for the Continuous

Calculate the milliliters per hour of heparin required for the continuous infusion.
Order: Begin a heparin drip per the facility's protocol. The patient's weight is 66 kg.
Heparin Protocol
Bolus: Heparin 80 units/kg
Infusion: Heparin 18 units/kg/h using a concentration of heparin 25,000 units in 250 mL of NS (100 units/mL)