Ordering Recommendation

May be useful as an independent risk marker for thrombosis associated with APS and related diseases. Consider using when all criteria aPL antibody tests are negative; positive results should be reported to document persistence.

Mnemonic
APS/PT G
Methodology

Semi-Quantitative Enzyme-Linked Immunosorbent Assay

Performed

Thu

Reported

1-8 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

Serum separator tube. Also acceptable: Blue (sodium citrate).

Specimen Preparation

Transfer 0.5 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.15 mL)

Storage/Transport Temperature

Refrigerated. Also acceptable: Frozen.

Unacceptable Conditions

Other body fluids. Contaminated, hemolyzed, grossly icteric, or severely lipemic specimens.

Remarks
Stability

After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)

Reference Interval

0-30 Units

Interpretive Data

Elevated and persistent aPS/PT IgG antibody (with or without lupus anticoagulant activity) may serve as a risk marker of thrombotic events in patients with certain autoimmune diseases, including antiphospholipid syndrome (APS) and systemic lupus erythematosus (SLE). 

No compliance statements are in use for this test.

Note
Hotline History
N/A
CPT Codes

83516

Components
Component Test Code* Component Chart Name LOINC
2009448 Phosphatidylserine and Prothrombin IgG
* 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
Phosphatidylserine and Prothrombin Antibody, IgG