factor assays (APTT based)


Description

APTT based factor assays (factors VIII, IX, XI, XII) - investigation of a long APTT and / or suspected bleeding disorder


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. Factors VIII, IX, XI and XII will be performed.


Sending address

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

Laboratory service

Haematology


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


Cost

Upon request


Call in advance?

Not required


Haematology

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

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