factor assays


factors II, V, VII, VIII, IX, X, XI, XII, XIII

Additional information

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.

Sending address

Department of Haematology Camelia Botnar Laboratories Great Ormond Street Hospital Great Ormond Street WC1N 3JH

Laboratory service


Sample requirements

2 x 1.4ml venous blood, citrate

Reference range

Please click on the link to view reference range View the reference range for this test >

Turnaround time

10 days


Upon request

Call in advance?

Not required


The Haematology Department provides a wide range of specialist tests with a special interest in the diagnosis and monitoring of coagulation disorders.

© 2011 Great Ormond Street Hospital for Children NHS Trust