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Laboratory Medicine

Test Directory / Coagulation Factor IX Inhibitors

Coagulation Factor IX Inhibitors

Citrated Plasma

TestCoagulation Factor IX Inhibitors
Common Abbreviations
Profile Coagulation Screen added on the same sample and Factor IX assay
Clinical IndicationScreen and quantitation for Factor IX inhibitor antibodies
Specimen TypeBlood
Sample TypeCitrated Plasma
Minimum Volume3 x 3 mL (adult) 3 x 1 mL (paed) (citrated plasma must be filled to bottle line)
Special PrecautionsMust write type of replacement factor product if relevant Must state if patient is on anticoagulants (DOAC, Warfarin, Heparin); known coagulation disorders; clincal symptoms (bleeding, bruising).
Stability4-6 hours
Turnaround Time24 hrs (urgent) if requested via the haematology consultants. 3 weeks (routine)
LaboratoryRoyal Hallamshire Hospital Sheffield
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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