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Test Code FIBR Fibrinogen [LAB314]

Test Method

Mechanical Clot Detection (Clauss Method); Diagnostica Stago

Performance

Testing is performed Monday through Sunday.

Routine orders: Typically completed within 4 hours upon receipt in the lab.

STAT orders: Typically completed within 45 minutes upon receipt in the lab.

Specimen Requirement

  1. Sodium citrate blue-top tube filled to the area within the indicator arrow printed on the side of the tube.
    Important: Underfilled and overfilled tubes will be rejected.
  2. Transport tube to the lab as soon as possible. Tubes should be spun within one hour of collection and tested within 24 hours of collection.
  3. Never refrigerate specimens for fibrinogen testing.
  4. If the specimen cannot be sent to the lab immediately, spin down and remove plasma from the cells and freeze to at least -20C. The specimen must then remain frozen during transport to the lab.
  5. Blood collection using a butterfly needle is not recommended. If using a winged butterfly setup, collect a "discard tube" first to account for the dead space in the butterfly tubing. 
  6. Do not "force fill" into a vacutainer tube.
  7. Do not remove the cap of a blue top citrate tube.

Useful For

Detecting increased or decreased fibrinogen (factor I) concentration of acquired or congenital origin

Monitoring severity and treatment of disseminated intravascular coagulation and fibrinolysis

Reference Values

196 - 509 mg/dL

  • Critical value: < 80 mg/dL

CPT Code Information

85384 Coagulopathy Testing: Fibrinogen Activity