Additive: to research the hemostatic system there is used  trisodium citrate liquid concentration in vacuum tubes: 

0.109mol/l - 3.20% (32.0g/l); 

0.129mol/l - 3.80% (38.0g/l). 

The volume ratio of blood and sodium citrate is 9:1. 

Sodium citrate is an anticoagulant for collection of venous  blood to research coagulation properties of blood. 

Anti-coagulative properties of citrate are shown in complex  formation with ions of Ca2+ and effffective removal them  from blood. 

Usage: to research the hemostatic system. 

Specimen: plasma. 

Immediately after taking the blood into the tube with citrate  it must be carefully mixed at least 5 times to prevent micro  clots. 

Requirements according to the NCCLS H21-A4  recommendations: 

Samples of tests (e.g. thrombin time, Protein C, Factor V and  Factor VII) can be stored at temperature 18-24 ° C and  temperature 2-4 ° C, and should be centrifuged and  analyzed no later than 4 hours after blood collection. 

If it is not possible to make test for PV during 24 hours and  for other analyses during 4 hours plasma must be separated  from blood cells (transfused into another tube) and frozen  after centrifuging. 

Freezing samples may inflfluence the results of the APTT. 

Conditions of centrifugation: 2000-2500 g for 10-15  minutes.

13*75mm 1.8ml 2.7ml 3.6ml 4.5ml

13*100mm  4.5ml 5.4ml

13*75mm  100pcs/rack  1200pcs/box   box size: 37*31*28cm

13*100mm  100pcs/rack  1200pcs/box   box size: 37*31*35cm