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Phosphatidic Acid Antibodies, IgG, IgM, and IgA
2007610
Ordering Recommendation
Mnemonic
PHOS ACID
Methodology
Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Performed
Fri
Reported
1-8 days
N/A
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
Serum separator tube. 
Specimen Preparation
Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum to an ARUP Standard Transport Tube. (Min: 0.15 mL) 
Storage/Transport Temperature
Refrigerated. 
Unacceptable Conditions
Urine or plasma. Contaminated, heat-inactivated, severely 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
Test Number
Components
Reference Interval
 Phosphatidic Acid Antibody, IgG
Reference Interval
0-11 U/mLNormal
12-18 U/mLEquivocal. Suggest repeat testing in 4-6 weeks or consider antibody testing for cardiolipin IgG and IgM, beta-2 glycoprotein 1 IgG and IgM and lupus anticoagulant.
19 U/mL or greaterPositive

 Phosphatidic Acid Antibody, IgM
Reference Interval
0-11 U/mLNormal
12-18 U/mLEquivocal. Suggest repeat testing in 4-6 weeks or consider antibody testing for cardiolipin IgG and IgM, beta-2 glycoprotein 1 IgG and IgM and lupus anticoagulant.
19 U/mL or greaterPositive

 Phosphatidic Acid Antibody, IgA
Reference Interval
0-11 U/mLNormal
12-18 U/mLEquivocal. Suggest repeat testing in 4-6 weeks or consider antibody testing for cardiolipin IgG and IgM, beta-2 glycoprotein 1 IgG and IgM and lupus anticoagulant
19 U/mL or greaterPositive


Interpretive Data


Compliance Statement D: This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.

Components
Component Test Code*Component Chart NameLOINC
2007604Phosphatidic Acid Antibody, IgM13071-6
2007606Phosphatidic Acid Antibody, IgG13070-8
2007608Phosphatidic Acid Antibody, IgA13072-4
* 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
  • Anti-Phosphatidic Acid (aPA)
  • aPA Antibodies