Cryofibrinogen, Plasma, Qualitative

Abbrev Code:CRYFIB   
Order Code:LAB569Order Name:Cryofibrinogen
Methodology:Cold precipitation
CPT Codes: 82585 x1
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported in 3-4 days.
Special Instructions:Fasting specimen required.

Collection Instructions

Optimal Volume:6 mL
Minimum\Peds Volume:2.0 mL
Container:Blue Na Citrate, 3.2% - fill to fill line on tube
Collection Instructions:

Blood must be drawn in a pre-warmed (37°C) syringe and kept at 37°C. Immediately after blood has been obtained, transfer sample into two 2.7 mL prewarmed (37°C) light blue (sodium citrate) tubes, one 1.8 mL tube minimum, and keep at 37°C. Sample may be drawn directly into a prewarmed collection tube and maintained at 37°C until centrifugation.


Causes for Rejection:Frozen samples, heparinized samples, lipemic or grossly hemolyzed samples.

Processing and Shipping

Specimen Processing:

Separate 3 mL, 1 mL minimum plasma from cells using a 37°C centrifuge, if possible. Store at room temperature. Do not freeze.


Shipping Instructions:Ship at room temperature.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:50190 (CRYO FIB)


Reference Range:Negative at 72 hours.

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