2006182
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Factor XIII Activity

F13 A
Example Reports
Low
Normal

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Specimen Collection and Handling

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Additional Technical Information

Ordering Recommendation

Preferred first-line test to diagnose inherited or acquired factor XIII (FXIII) deficiency. Appropriate for evaluation of patients with a bleeding disorder who present with normal prothrombin time (PT), activated partial thromboplastin​ time (aPTT), and platelet count test results. Monitor FXIII therapy and confirm abnormalities detected on FXIII qualitative assay.

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation
Collect

Lt. blue (sodium citrate). Refer to Specimen Handling at aruplab.com for hemostasis/thrombosis specimen handling guidelines.

Specimen Preparation

Transfer 2 mL platelet-poor plasma to an ARUP standard transport tube. (Min: 1 mL)

Storage/Transport Temperature

CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.

Unacceptable Conditions

Serum. EDTA plasma, clotted or hemolyzed specimens.

Remarks
Stability

Ambient: 4 hours; Refrigerated: Unacceptable; Frozen: 3 months

Methodology

Chromogenic Assay

Performed

Tue

Reported

1-8 days

Reference Interval

Factor XIII Activity 69-143%

Interpretive Data



Compliance Category

Laboratory Developed Test (LDT)

Note

Hotline History

View Hotline History

 

Hotline History

Date of Change
Test Name Change
Methodology
Performance/Reported Schedule
Specimen Requirements
Reference Interval
Interpretive Data
Note
CPT Code
Component Change
Other Interface Change
New Test
Inactive
10/20/2025
X
N/A

CPT Codes

85290

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Components

Component Test Code* Component Chart Name LOINC
2006183 Factor XIII Activity 27815-0
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Aliases

  • Factor 13
  • fibrin stabilizing factor
Factor XIII Activity