Heparin

VACUETTE^® heparin tubes are coated on the inside wall with spray-dried lithium, ammonium or sodium heparin and are used to determine analytes in clinical chemistry. The additive acts as an anticoagulant, and blocks the clotting cascade.

VACUETTE^® heparin separator tubes contain an inert separator gel on the base of the tube which, after centrifugation, forms a stable barrier between the plasma and the blood cells. VACUETTE^® heparin tubes with separator gel improve the plasma yield and allow plasma to be stored in primary tubes.

Use the table below to skip to other VACUETTE® tube types:

Additive	Cap Color	Cap Image
Coagulation Blood Tube	Light Blue Top Tube
Serum Blood Tube	Red Top Tube/Black Ring
Serum Separator Blood Tube	Gold Top Tube
Lithium Heparin Blood Tube	Green Top Tube/Black Ring
Lithium Heparin Separator Blood Tube	Green Top Tube/Yellow Ring
Sodium Heparin Blood Tube	Green Top Tube/ Green Ring
K2 EDTA Blood Tube	Lavender Top Tube
K2 EDTA Separator Blood Tube	Lavender Top Tube
K3 EDTA Blood Tube	Lavender Top Tube
No Additive Blood Tube	White Top Tube
Glucose Blood Tube	Grey Top Tube
Trace Elements Blood Tube	Royal Blue Top Tube