Initial dose: At least 150 units/kg; frequently, 300 units/kg is used for procedures estimated to last less than 60 minutes or 400 units/kg for those estimated to last longer than 60 minutes.
-Consult the latest guidelines regarding duration and intensity of anticoagulation for the indicated conditions.
-Dosage and administration must be individualized according to the results of suitable laboratory tests.
-Prevention of clotting in arterial and cardiac surgery.
-Total body perfusion for open-heart surgery.
Medical consequences of chronic injection use include scarred and/or collapsed veins, bacterial infections of the blood vessels and heart valves, abscesses (boils), and other soft-tissue infections. Many of the additives in street heroin may include substances that do not readily dissolve and result in clogging the blood vessels that lead to the lungs, liver, kidneys, or brain. This can cause infection or even death of small patches of cells in vital organs. Immune reactions to these or other contaminants can cause arthritis or other rheumatologic problems.