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Laboratory Medicine

Test Directory / Coagulation factor II assay

Coagulation factor II assay

Citrated Plasma

TestCoagulation factor II assay
Common AbbreviationsFII
Profile Coagulation Screen added on the same sample.
Clinical IndicationTo determine if the coagulation factor II is low or absent. Associated with reduced clot formation and bleeding. Contact Consultant Haematologist for advice.
Specimen TypeBlood
Sample TypeCitrated Plasma
Minimum Volume2 x 3 mL (adult) 2 x 1 mL (paed) (citrated plasma must be filled to bottle line)
Special PrecautionsMust state if patient is on anticoagulants (DOAC, Warfarin, Heparin); known coagulation disorders; clincal symptoms (bleeding, bruising).
Stability4-6 hours
Turnaround Time4 hours (urgent) if requested via the haematology consultants. 3 weeks (routine)
LaboratoryYork Hospital
Reference IntervalReference range printed on final report.
LimitationsHaemolysis, gross lipaemia, high haematocrit may interfere with measurement. Over or under filled samples cannot be used due to ratio between blood and citrate
Additional Information
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