Jun 20, 2016




Clinical Hub,Tools & Resources,UWHC Lab Test Directory,Coagulation


Fibrinogen (GM1320) Coagulation Lab Test

Name: Fibrinogen

Test Name: Fibrinogen

Health Link Test Code: GM1320

LIS Test Code: FIBR

CPT Code(s): 85384

Methodology: Photo-Optical Clot Detection

Days Performed: Daily, 24 hours.

In-Lab Turnaround Time: 4 hours.

Stat In-Lab Turnaround Time: 1 hour.

Specimen: Blood

Collection Container: Light blue top (3.2% NaCitrate)

Collection Instructions:

The venipuncture MUST be atraumatic to avoid hemolysis and contamination with tissue factors and platelets. Tube MUST be allowed to fill up to "fill" line indicated on tube.


If unable to collect 1.8 ml tube (pediatrics only) please call UWHC Coagulation Laboratory at (608) 263-9617 or UWHC Special Coagulation Lab at (608) 263-5005 for alternate tube and instructions.

Collection Volume: 3.5 mL

Pediatric Collection Volume: 1.8 mL

Stability Ambient:

24 hours if left unspun; 8 hours spun and opened

Stability Refridgerated:

Not acceptable

Stability Frozen:

2 weeks at -20°C; 6 months at -70°C

Sample Analyzed: Plasma

Testing Volume: 0.5 mL

Pediatric Testing Volume: 0.5 mL

Specimen Processing:

Centrifuge specimen to yield platelet poor plasma (platelet count should be less than 10K/uL). Separate plasma and transfer to plastic tube or vial. Freeze plasma at -20°C or below.

Specimen Transport:

Transport whole blood specimen to UWHC Hospital Laboratory within 24 hours of collection. Otherwise, transport frozen plasma aliquot on dry ice to laboratory.

Unacceptable Criteria:

Grossly hemolyzed specimens, clotted specimens, partially filled tubes and whole blood specimens greater than 24 hours old when received by the laboratory are not acceptable.


0 days and up: 200-400 mg/dL

Interpretation Type: Reference Interval

Critical Calls: yes