ANTI PHOSPHOLIPID ANTIBODY IGM, SERUM

Anti-Phospholipid Antibody IgM, Serum

What it is

The Anti-Phospholipid Antibody IgM test detects IgM autoantibodies directed against phospholipids, which are essential components of cell membranes. The presence of these antibodies is linked to Antiphospholipid Syndrome (APS), an autoimmune disorder that increases the risk of abnormal blood clotting, pregnancy complications, and recurrent miscarriages.

Uses

This test is used to help diagnose Antiphospholipid Syndrome in patients with unexplained clotting problems or pregnancy losses. It is also performed to assess the risk of thrombosis and is often ordered alongside Anti-Phospholipid IgG and lupus anticoagulant tests for a complete APS profile.

Symptoms That May Lead to the Test

Doctors may recommend this test if a patient has a history of deep vein thrombosis (DVT), pulmonary embolism, recurrent miscarriages, stillbirths, early stroke, or autoimmune conditions such as lupus with vascular complications.

Abnormal Results

Positive Anti-Phospholipid Antibody IgM: Suggests a higher risk of blood clots, recurrent pregnancy loss, and Antiphospholipid Syndrome. Results are usually confirmed with repeat testing and additional antibody tests.

Negative Anti-Phospholipid Antibody IgM: Suggests a lower likelihood of APS, though repeat testing may be needed if clinical suspicion remains high.

Risks

The Anti-Phospholipid Antibody IgM test is a standard blood test with minimal risks. Possible side effects include mild pain, bruising, or bleeding at the puncture site, and rarely dizziness or infection.