Coagulation Tube (Double Layer Tube)
Ampulab coagulation tubes are used for examination of coagulation parameters.
Coagulation tubes contain a buffered sodium citrate solution. It is available with a citrate concentration of 0.109 mol/l (3.2%) or 0.129 mol/l (3.8%). The choice of the concentration depends on the policy of the laboratories. The mixing ratio is 1 part citrate solution to 9 parts blood.