PTT blood tests Vacutainer tube The diagnosis for deficiency of<unk>  S can be done via reviewing family history of condition and genetic testing, as well as the following: *<unk>  S antigen test * Coagulation test (prothrombin time test) * Thrombotic disease investigation * Factor V Leiden test Differential diagnosis Among the possibilities for differential diagnosis of<unk>  are- Antiphospholipid syndrome, disseminated intravascular coagulation and antithrombin deficiency (though this list is not exhaustive) Types There are three types of hereditary<unk> : * Type I – decreased<unk>  S activity: decreased total<unk>  S levels, as well as decreased free<unk>  S levels * Type II – decreased in regards to the cofactor activity of the<unk>  * Type III – decreased<unk>  S activity: decreased free<unk>  S levels (normal total<unk>  S levels)
Protein S deficiency
Protein C deficiency
Factor I deficiency
Factor X deficiency
Factor VII deficiency
Factor XIII deficiency
Antithrombin III deficiency
COAT platelet defect