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FSF (Factor XIII) (FSF)

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EPIC Test Name

FACTOR 13 ACTIVITY

EPIC Code

LAB1113

Specimen Requirements

Plasma
Minimum Volume:2.7 mL
Collection:Collect using standard laboratory procedures. Tubes must be full to obtain proper blood to anticoagulant ratio or the specimen will be rejected.
Transport:Specimens scheduled to arrive in lab in less than 4 hours can be sent at room temperature. Specimens arriving more than 4 hours must be platelet poor specimens and need to be frozen before transport. Place in an insulated container filled with dry ice to ensure that the specimen does not thaw.
Stability:Room temp: 4 hours Frozen: 2 weeks at -20 C 6 months at -70 C.
Container:Light-blue top (3.2% sodium citrate)
Processing/Storage:Specimens that cannot reach the lab within the time frame should be double spun at 2500 g for 15 minutes to obtain platelet poor plasma. 0.5mL aliquots should be frozen in plastic at -20 degrees C.
Rejection Causes:Clotted
Insufficent Sample Volume

Methods

Manual

Turnaround Time

SpecimenTurnaround Time
PlasmaTesting is batched

Reference Ranges

Manual
All Range
Insoluble at 24 hours

Clinical Indications

Diagnosis of severe deficiency of Factor XIII (fibrin stabilizing factor). Severe deficiency of F XIII is rare and causes delayed bleeding and wound heeeling. The test does not detect a mild deficiency, which however is not associated with significant bleeding.

Performed

Lab
Special Testing

CPT

85291

LOINC

3241-7

Contact Information

Special Testing: (315)464-4460
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