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Test Code Billings Clinic: 2004 Fibrinogen (Activity)

Important Note

For specimens being sent from reference clients outside of Billings:

This test will be forwarded to Mayo Medical Laboratories for testing due to specimen stability constraints.  Please order Billings Clinic Test Code 8946 (Mayo Test Code FIBTP).

Performing Laboratory

Billings Clinic Laboratory: Coagulation

Useful For

  • Fibrinogen determination is useful in evaluating patients with possible consumptive coagulopathies, major hemorrhage, major surgery, and liver disease.
  • It is also useful in monitoring patients receiving fibrinolytic therapy.

Methodology

Modified Clauss
 

Specimen Requirements

Specimen Collection and Handling:

  • Draw blood in a light blue-top (3.2% sodium citrate) tube(s).
  • Immediately after draw, gently invert tube(s) at least 6 times to mix well.
  • Spin down, remove plasma, spin plasma again, and place 1 mL of citrate platelet-poor plasma in plastic vial immediately after collection
  • Glass vial is not acceptable.
  • Double-centrifuged specimens are critical for accurate results as platelet contamination may cause spurious results.

 

Specimen Transport:

  • Transport specimen at room temperature
  • DO NOT refrigerate or freeze specimen

Storage/Stability

Specimen Type Temperature Time
Plasma Ambient 8 hours

Reject Due To

  • Refrigerated specimens
  • Frozen specimens
  • Incorrect collection tube
  • Incorrect fill volume (too full or not enough)
  • Clotted specimens

Reference Values

  • Reference values change with each new reagent lot (about once a year).
  • Check with laboratory or refer to reference range on computer reports.

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

85384 - Fibrinogen; activity

LOINC Code Information

Reporting Name LOINC Code
Fibrinogen 3255-7