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HelpTest Code LAAPS2 LA/APS Level 2 Antigenic Package
Specimen Type
Serum
Container/Tube
1 Red top tube
Offsite Collection Instructions
Whole blood or serum samples might be sent to the
laboratory.
Centrifugation instructions:
- Serum specimen should be centrifuged at >2500 x g
for 10 minutes. - Aliquot removed serum into 2 tubes containing minimum of
0.5 mL of specimen each. They may be sent refrigerated or frozen.
Note: Frozen samples that have thawed in transit
will be rejected.
Turnaround Time
7 days
Test Includes
The package includes antigenic testing for IgA antibodies
directed against beta-2 GPI and against
cardiolipin. It additionally includes antigenic testing for
IgG and IgM antibodies directed
against phosphatidylserine/prothrombin complexes.
Preferred Volume
2 mL
UCMC Collection Instructions
Specimens for level 2 antigenic testing can be collected and
sent to the lab at any time.
Test Usage
The package includes antigenic testing for detection of
antiphospholipid antibodies.
Fee Code
30286147, 30286146, 30386148, 30486148
Synonyms
Lupus; LA; APS; LA/APS; APS/LA, Level 2;
Anticardiolipin IgA Antibodies; Beta-2 Glycoprotein I IgA
Antibodies; Antiphosphatidylserine/prothrombin Antibodies;
LAAPS2
STAT Turnaround Time
n/a
Specimen Minimum Volume
1 mL
DAY(S) AND TIME(S) PERFORMED
Testing will be performed on Wednesday of each week. Samples
to be tested should be in the lab no later than 8:30 am on
Wednesday in order to be included in that run
STAT DAY(S) AND TIME(S) PERFORMED
Not Available
CPT
86147, 86146, 86148
Method Name
ELISA
Reference Values
Anticardiolipin IgA:
Negative: <12.0 APL
Borderline positive: 12.0-19 APL
Medium positive: 20-80 APL
High positive: >80 APL
Beta-2 GPI IgA: <20.1 U/mL
APS/PT IgG: <30.1 U/mL
APS/PT IgM: <30.1 U/mL
Reject Due To
Specimens grossly hemolyzed