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Test Code FIBR Fibrinogen, LAB314

Specimen Requirements

Container/Tube:

Preferred: Full blue-top (sodium citrate) 1.8mL tube-Hemolyzed or short draw specimen is not acceptable.

Specimen Volume: 0.5mL sodium citrate plasma

Stability: Centrifuged specimens at 18-24°C must be tested within 4 hours of specimen collection

Collection Instructions: Centrifuge immediately after draw. Forward promptly. If there is a delay in transport of ≤4 hours or if mailing time is ≤4 hours, send specimen refrigerated.  If testing not performed within 4 hours, plasma should be removed from cells and frozen at -20°C.

NOTE:  Patients with a hematocrit of >55% must be recollected using an altered amount of sodium citrate.

Reference Values

 

 

Fibrinogen (mg/dL)

Age

Low

High

Critical

0-1 day

214

399

<50

2-5 days

208

462

<50

6-30 days

208

378

<50

1-3 months

137

379

<50

4-11 months

147

387

<50

1 – 5 years

200

400

<50

6 – 10 years

200

400

<50

11 – 16 years

200

400

<50

>16 year

200

400

<50

 

 

 

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Day(s) Test Set Up

Monday through Sunday

Useful For

A deficiency in fibrinogen is a rare occurrence, but when it does occur, it may produce severe hemorrhage. 

Methodology

Clot Based Assay

Test Classification and CPT Coding

85384