Before the limited hardware warranty expires, please contact Microsoft Surface Support at 1-866-425-8880 (or replacement number(s) provided by Microsoft) or choose from the.standard business hours. The limited hardware warranty terms for your Microsoft Surface hardware unit are located in the Surface Order Form Terms and Conditions that you agreed to as part of the purchase of your Surface hardware unit.
heparin lock. A device attached to an intravenous catheter to prevent it from clotting. It is used for intermittent administration of fluids or medication. See: heparin lock flush solution; venous access device.
Heparin is an injectable drug used to prevent and treat blood clots in the veins, arteries, or lungs. The medicine is in a class of drugs known as anticoagulants (blood thinners).It works by decreasing the blood's ability to clot. Heparin is often given to people with atrial fibrillation, deep vein thrombosis (DVT), pulmonary emboli, certain blood clotting disorders, and to bed-or wheelchair-bound people.It's used during dialysis, blood transfusions, and blood sampling.It's also given before surgery to reduce the risk of blood clots. Heparin was approved by the Food and Drug Administration (FDA) in 1939.t's used during dialysis, blood transfusions, and blood sampling. It's also given before surgery to reduce the risk of blood clots. Heparin was approved by the Food and Drug Administration (FDA) in 1939.