A nurse is preparing to administer heparin to a patient for anticoagulation therapy. The order is for heparin 7,500 units subcutaneously every 12 hours. The vial available is labeled as heparin 10,000 units/mL. How many milliliters (mL) should the nurse administer per dose?
1
0.75 mL
2
0.5 mL
3
0.25 mL
4
1 mL