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Test Code
FX3AC
Test Name
Factor XIII Activity
CPT Codes
85290
Expected Turnaround Time
3 - 10 days
Clinical Utility

Low Factor XIII levels, i.e., <15%, may cause a bleeding disorder and levels <2% have been associated with spontaneous introcranial hemorrhage.
Specimen and Container Info

Specimen Type: Platelet-Poor Plasma

  

Collection Container: Light Blue Top (Sodium Citrate)

Desired Specimen Volume: 1 mL
Collection Instructions
  1. Collect a light blue top (sodium citrate) tube via venipuncture.
  2. Fill entire tube with whole blood.
Processing and Submission Instructions

Platelet-Poor Plasma Processing Instructions

  1. Perform platelet-poor plasma processing procedure within 1 hour of collection.
  2. Transfer 1 mL of platelet-poor plasma into a clear aliquot tube (screw cap).
  3. Please submit a separate, frozen aliquot tube for each special coagulation assay ordered.
Transport Instructions

Transport to the laboratory frozen. 
Stability Requirements

Room Temperature

24 hours

Refrigerated

24 hours

Frozen

14 days
Methodology
Chromogenic
Reference Intervals

See patient report.
Alternate Names
  • Factor XIII, Functional
Reference Lab
Quest Diagnostics Nichols Institute
Testing Schedule
Routine, 1 time per week
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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