Global & Routine Tests

Highlight coagulation cascade’s dysfunction

Prothrombin Time (PT)*
Activated Partial Thromboplastin Time (aPTT)*
Fibrinogen*
Thrombin Time (TT)*

PT explores the coagulation extrinsic pathway and can be used for investigating some congenital or acquired bleeding disorders, liver diseases, vitamin K deficiency and vitamin K antagonists therapy.
It allows exploration of so-called vitamin K dependent coagulation factors.
This is the most widely used coagulation assay for laboratory monitoring of anticoagulant therapy with Vitamin K Antagonists (VKA).

 

* cf Dedicated instructions for use

 

Explores the intrinsic pathway of coagulation and is a screening test to investigate some congenital or acquired deficiencies, especially hemophilia A and B, or coagulation inhibitors such as Lupus Anticoagulant (LA) or autoantibodies against coagulation factors.

 

* cf Dedicated instructions for use

 

Elevated fibrinogen concentrations are observed in inflammation and have also been considered as a risk factor for cardiovascular disease and thrombosis.
Hypofibrinogenemia can be present in patients with fibrinogen deficiency or dysfunction (abnormal protein), and is also associated with severe liver diseases, or excessive consumption (Disseminated Intravascular Coagulation (DIC)).
Numerous variants of fibrinogen have been described, and are associated to asymptomatic cases or hypofibrinogenemia, with clinical manifestations of bleeding, or thrombosis (resulting from an impaired fibrinolysis).

 

* cf Dedicated instructions for use

 

TT is a screening test to assess abnormalities of fibrinogen and to detect thrombin inhibitors. It can be useful for the exploration of Disseminated Intravascular Coagulation (DIC) and liver diseases.
A prolonged TT can result from the presence of antithrombin activity induced by therapy (e.g. Heparin, Bivalirudin, Argatroban, Dabigatran), the presence of high concentrations of Fibrin/Fibrinogen degradation products or qualitative (dysfibrinogenemia) or quantitative abnormalities of Fibrinogen (deficiency, DIC, fibrinolysis, hepatic disorders including cirrhosis).
TT is normal in presence of a Factor XIII deficiency.

 

* cf Dedicated instructions for use