Partial Thromboplastin Time (PTT)

LABOKLIN Service ID: 598

  • PTT is used to monitor the intrinsic system and can be used as global test to identify coagulopathies.
  • Isolated prolongation of PTT without changes prothrombin time (exocrine system) is suspicious for factor deficiency (as factor VIII, IX, XI and XII). Hemophilia A and B can be identified by estimation of the concentration of single factors (VIII and IX).


citrate plasma 1:10 (1 part citrate + 9 parts blood) 0.5 ml (cooled).
Please note the introduction to the category coagulation!




1 day