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CRYOFIBRINOGEN, plasma (087-0287)
Test Mnemonic:


Specimen Requirements:

7 mL Green-topped (heparinized) vacutainer tube. A minimum of 5mL of blood is acceptable; less than 5mL of blood is not acceptable. Blood should be kept at body temperature (37°C) and hand delivered to the laboratory within 30 minutes of collection.  



Prompt delivery to  Sample Management  within 30 minutes 

Specimen Preparation:


Place specimen in 37°C water bath for one hour.  Centrifuge and transfer as much plasma as possible without touching the buffy coat into a clean 15 mL screw cap graduated centrifuge tube.  Store sample at room temperature until testing can be performed


Room temperature for ≤ 1 week.  

Causes for Rejection:

Specimen not deliver at the correct temperature, incomplete and/or incorrect sample identification, improper storage/transport, and lipemia.                                                                                 

Reference Range:

By report (reports may vary based on instrumentation, patient age and sex).

Turnaround Time:

M-F: within 24 hours


Qualitative Cold Precipitation


Special Chemistry; Monday – Friday:  7am- 3:30pm 

CPT 4 Code:



Sample must be kept at body temperature (37°C) and hand delivered to the laboratory within 30 minutes of collection.  Not available on Week-ends.

If applicable, state clinical information that is required to be provided with specimen.

When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient. Components of the organ or disease panels may be ordered individually. The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-10 code or its verbal equivalent.
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