Beta-2-glycoprotein I antibody (qualitative) – serum/plasma

What This Test Measures

Beta-2-glycoprotein I (Beta-2-GPI) is a protein found in your blood that interacts with phospholipids (fats) on cell surfaces. Antibodies against this protein can be detected in people with autoimmune disorders, such as antiphospholipid syndrome (APS), a condition that increases the risk of blood clots or pregnancy complications. This test checks for the presence of these antibodies in your serum or plasma.

Why It Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like unexplained blood clots, recurrent miscarriages, or other signs of autoimmune activity. It’s also used as part of screening or monitoring for conditions like lupus or other connective tissue diseases.

Sample Collection and Preparation

A blood sample is drawn from a vein, usually in your arm. The blood is then processed to separate the serum or plasma, which is sent to the lab for testing. You may be asked to fast before the test, but this isn’t always required.

What to Expect Before the Test

No special preparation is needed beyond standard blood draw precautions. If you’re on blood-thinning medications, let your provider know before the test to avoid unnecessary delays or complications.