2024 Heparin Vacuum Blood Collection Tube

Heparin tubes are coated with spray-dried lithium heparin or sodium heparin. They are used for collecting blood specimen for biochemistry tests and some test items in blood rheology. The anti-coagulants heparin activates anti-thrombins, thus blocking the coagulation cascade of the blood specimen producing a whole blood/plasma sample instead of clotted blood plus serum.