coagulation screen


Description

PT, APTT, TT and fibrinogen

Also known as

clotting screen, prothrombin time, activated partial thromboplastin time, fibrinogen


Additional information

Fill exactly to the line indicated on the bottle. Sample must arrive within 2 hours of collection. Capillary samples are unsuitable for coagulation tests. Screen comprises PT, APTT, thrombin time and fibrinogen. If the patient is on warfarin or heparin, please indicate this on the request form.


Sending address

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

Laboratory service

Haematology


Sample requirements

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

3 hours (30 minutes for patients on the major haemorrhage protocol)


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.

© 2011 Great Ormond Street Hospital for Children NHS Trust