Print Preview

Factor 13 screen-994

Test info

Test name:

Factor 13 screen

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Alternate names:

Factor XIII
Factor XIII-qualitative
Fibrin stabilizing factor

Useful for:

This is a screening assay and will detect homozygous deficiency of factor XIII

Specimen

Specimen type:

Sodium citrate (Na cit) plasma

Collection container:

Lt blue Sodium citrate (NaCit) - 2.7mL

Volume:

1.0 mL

Minimum volume:

1.0 mL

Collection instructions:

Blood should be collected in a blue-top tube containing 3.2% buffered sodium citrate.
Evacuated collection tubes must be filled to completion to ensure a proper blood-to- anticoagulant ratio.
The sample should be mixed immediately by gentle inversion at least six times to ensure adequate mixing of the anticoagulant with the blood.

Processing instructions:

Spin
Transfer plasma to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp), labelled as Na cit plasma
Freeze

Transport container:

Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp)

Transport and stability:

Frozen (strict)

Reason for rejection:

Gross hemolysis
Clotted specimen
Samples thawed in transit

Performance

Performing lab:

LabCorp Burlington (086330): R-NX

Days set up:

Daily

TAT:

5 days

Method:

Clot solubility. The plasma is treated with thrombin to induce clot formation and the clot is transferred to 5 molar urea solution. Clots from individuals with normal factor XIII levels are stable for at least 24 hours while clots from XIII deficient individuals will dissolve rapidly.

Clinical and Interpretive info

Reference ranges:

Normal

Billing

CPT codes:

85291

LOINC code:

Result 3241-7

Tracking

Date created:

05/29/2019

Revised date:

04/08/2022

Review date:

03/30/2022