The hospital pharmacy order calls for 5000 units of heparin to be administered to a patient twice daily. The vial that the pharmacist has on hand contains 10,000 units of heparin per milliliter (mL). To determine the amount of the injection to be administered for each dose, we can use the following calculation:
5000 units ÷ 10,000 units/mL = 0.5 mL
So, 0.5 mL of the heparin injection should be administered for each dose