Test Overview

Test Methodology


Test Usage

The antiphospholipid syndrome (APS) is a disorder of recurrent vascular thrombosis associated with persistently positive anticardiolipin (aCL) or lupus anticoagulant tests. In patients with APS, anticardiolipin antibodies bind a variety of charged phospholipids, including phosphatidylethanolamine, as well as they do cardiolipin. Lupus patients also have high titers of autoantibodies to various phospholipids, including phosphatidylethanolamine.

Reference Range*

IgG <12 U/mL; IgM <12 U/mL; IgA <12 U/mL

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details

Days Test Performed


Analytic Time

2 - 9 days

Soft Order Code




Anti-Phosphatidylethanolamine Panel
Antiphosphatidyl Ethanolamine Antibody

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Laboratory Reference

Mayo FPHET (91322) (Cambridge Biomedical)

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Specimen Requirements

Offsite Collection Instructions

Collect specimen in a red top (preferred) or SST tube. Centrifuge, aliquot serum into a plastic vial and freeze.

Rejection Criteria

SST tube not acceptable.


Red Top Tube

Normal Volume

3 mL serum

Minimum Volume

0.5 mL serum

Additional Information

Test sent to Mayo Medical Laboratories; performed by Cambridge Biomedical.

Billing Information

Fee Codes

CPT Code

83520 x3

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