Test Directory

Extrinsic Clotting Factor Assays

Containers - Adult

S-Monovette Citrate 9NC, 2.9 ml, cap green, diameter 13 mm	Additive per Container Sodium Citrate

Containers - Child

S-Monovette Citrate 9NC, 1.4 ml, cap green, diameter 8 mm	Additive per Container Sodium Citrate

Reference ranges

Extrinsic Clotting Factor Levels in Adults:

FII (two) = 0.5 – 1.50: IU/mL

FV (five) = 0.5 – 1.50: IU/mL

FVII (seven) = 0.5 – 1.50: IU/mL

FX (ten) = 0.5 – 1.50: IU/mL

Laboratory Site

RIE

51 Little France Crescent
Old Dalkeith Road
Edinburgh
EH16 4SA

Telephone: 0131 536 1000

Transport arrangements

Specimen must be transported within a plastic sealable bag or other suitable container. Samples should be transported to the laboratory ASAP

Special instructions for collection

The coagulation samples (green top) MUST be filled to the green line indicated on the tube.

How to request

Must be discussed and arranged with Haematology medical staff.

Availability

Monday - Friday: routine service 09:00 - 17:00. Saturday - Sunday: routine service 09:00 - 13:00

Please contact the laboratory for urgent samples outside of routine hours.

Anticipated turnaround

7 days

What happens if the result is positive or abnormal

The laboratory will telephone abnormal results where it appears that these are likely to be clinically significant. Please provide telephone/ bleep number.

General additional information

The Extrinsic Clotting Factors comprise, FII, FV, FVII and FX