Test Directory

Test Code
CRFBN
Test Name
Cryofibrinogen
CPT Codes
82585
Expected Turnaround Time
3 - 5 days
Clinical Utility

Detect cryofibrinogen complexes in plasma.

Specimen and Container Info

Specimen Type: Citrated Plasma

Alternate Specimen Type: Plasma

Collection Container: Prewarmed Light Blue (Sodium Citrate)

Alternate Collection Container: Prewarmed Lavender Top (EDTA) or Prewarmed Gray Top (Sodium Fluoride)

Desired Specimen Volume: 3 mL

Collection Instructions
  1. Collect a prewarmed light blue (sodium citrate) tube via venipuncture.
  2. Maintain whole blood at 37°C.
Processing and Submission Instructions
  1. Separate citrated plasma from cells immediately after collection.
  2. Transfer 3 mL of citrated plasma to a clear aliquot tube (screw cap).
  3. Label tube as "prewarmed".
Transport Instructions

Transport to the laboratory at room temperature.  

Stability Requirements

Room Temperature

14 days

Causes for Rejection
  • Heparinized plasma
  • Whole blood received
Methodology
Visual Observation of Refrigerated Samples
Reference Intervals

See patient report.

Reference Lab
Labcorp Of America Holdings
Testing Schedule
Routine, daily