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Test Code 4383 Fibrinogen, Plasma

Performing Laboratory

Barnes-Jewish Hospital Laboratory

Methodology

Absorbance measurement, Clot signature formation 

Literature References:

Package insert:  HemosIL Q.F.A. Thrombin (Bovine) (pn20301700) Instrumentation Laboratory, issued 03/2016.

Specimen Requirements

Specimen Type: Plasma

Container/Tube: Light-blue top (citrate)
Specimen Volume: Full tube
Specimen Minimum Volume: Full tube

Collection Instructions:

1. Draw a discard tube prior to light-blue top (citrate) tube.
2. Tube should remain stoppered.
3. Do not centrifuge.
4. Clotted blood or an insufficient specimen is not acceptable.
5. Avoid hemolysis and heparin contamination of specimen.
Analyte Stability:
24 hours at 2° C to 24° C.
Platelet-free plasma can be stored 6 months at -70° C.
Additional Information: If the patient is a hospital patient and the hematocrit is >55%, call Barnes-Jewish Hematology Laboratory at 314-362-5203 for instructions.

Day(s) Test Set Up

Monday through Sunday
Turnaround Time:
STAT: 1 hour after receipt in laboratory
Routine: 2-4 hours after receipt in laboratory

Reference Values

170-400 mg/dL

Physician alert value (automatic call-back): <100 mg/dL

Literature References:

1. Clauss A. Gerinnungsphysiologische schnellmethode zur bestimmung des fibrinogens. Acta Haemat 1957;17:237.        
2. Harker LA. Hemostasis manual, 2nd edition. Philadelphia, PA: F.A. Davis Co, 1974.

Test Classification and CPT Coding

85384

Additional Information

For BJH Laboratory Use Only
Analyte Stability:

24 hours at 2° C to 24° C.
Platelet-free plasma can be stored 6 months at -70° C.

Laboratory Processing Instructions:

Test performed in BJH Hematology.

Specimen Transport Temperature

Ambient/Refrigerate NO/Frozen Yes

LOINC Code Information

Name LOINC Code
Fibrinogen, Plasma 3255-7
Fibrinogen, Plasma (PT based) 48664-7