- FIBRR
Fibrinogen
Specimen:
Test Code
FIBRR
Specimen Name
Fibrinogen
Collect
Sodium Citrated Plasma
Submit
2 - 1 mL (Min. 0.5 mL) aliquots of platelet poor citrated plasma, frozen. Also Acceptable: Sodium Citrate whole blood, room temperature (must be spun and poured off within 4 hours)
Special Handling
If testing cannot be completed within 4 hours, prepare platelet poor plasma and freeze at -20 C. Using a plastic disposable pipette, carefully transfer the top ¾ of the plasma into a polypropylene tube, avoiding the buffy coat. DO NOT pour off. Inspect the plasma for clots or visible hemolysis.
Rejection Criteria
Specimens collected in an anticoagulant other than 3.2% sodium citrate
Under or overfilled specimens
Clotted specimens
Grossly hemolyzed, lipemic, or icteric specimens
Refrigerated or frozen whole blood specimens
Under or overfilled specimens
Clotted specimens
Grossly hemolyzed, lipemic, or icteric specimens
Refrigerated or frozen whole blood specimens
Stability
Whole blood: Room temperature: 4 hours
Plasma: Frozen -20 C: 2 weeks
If specimen cannot be tested within 4 hours, prepare platelet poor citrated plasma and freeze plasma in two 0.5 mL aliquots
Methodology
Clauss clotting method
Performed
Performed Sunday through Saturday
Reported
1-2 days
CPT Codes
- 85384
Components
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Additional Information
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Common Lab Definitions
- Serum
- Plasma
- STT