Antiphosphatidylserine, IgG and IgM

Alphabetical Test listing

Antiphosphatidylserine, IgG and IgM-994

Test name:

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Alternate names:

Phosphatidylserine
Phosphatidylserine/Prothrombin Antibody, (IgG and IgM)
PS/PT Antibody (IgG and IgM)

Useful for:

This test can be used as an aid in the diagnosis of certain autoimmune thrombotic disorders, such as antiphospholipid syndrome (aPS). Antibodies to PS/PT correlate with the presence of lupus anticoagulants (LA), and this test may be useful in cases with difficult LA test interpretation. This assay also may assist in the determination of risk for thrombosis as well as obstetric complications in patients with antiphospholipid antibodies.

Specimen type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

1.0 mL

Minimum volume:

0.5 mL

Collection instructions:

Immediately following collection, thoroughly mix sample by gently inverting 5 times

Processing instructions:

Allow sample to clot for a minimum of 30 minutes
Spin within two (2) hours of sample collection

Transport container:

Gold serum separator (SST) tube

Alternate collection container:

Red serum vial/tube, 5 mL

Alternate processing instructions:

Allow sample to clot
Spin
Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum, within two (2) hours of sample collection

Alternate transport container:

Transfer vial/tube with cap - 12mL (LabCorp)

Transport and stability:

Ambient (preferred) - 14 days

Refrigerated - 14 days

Frozen - 14 days

Freeze/thaw cycles - stable x3

Reason for rejection:

Gross hemolysis
Bacterial contamination
Lipemia

Performing lab:

LabCorp (117985): R-NX

Days set up:

Daily

TAT:

4 days

Method:

Enzyme-linked immunosorbent assay (ELISA)

Reference ranges:

IgG: 0 – 30 Units

IgM: 0 – 30 Units

CPT codes:

86148 x 2

LOINC code:

Result 14246-3

Date created:

05/24/2019

Revised date:

06/13/2022

Review date:

06/13/2022