Factor assays (APTT based) VIII IX XI XII

Factor Inhibitor Assay

Haematology - Coagulation

Coagulation disorder investigation

2 x 1.4ml venous blood, citrate

Fill exactly to the line on the bottle. Must arrive within 2 hours of collection. Capillary samples are unsuitable for coagulation tests. 2.8ml will be sufficient for all tests and a coagulation screen. Factors VIII, IX, XI and XII will be performed. Please contact the laboratory prior to sending samples

10 days

Not applicable

Yes