Anti-Cardiolipin Antibody
Anti-cardiolipin antibodies are autoantibodies directed against cardiolipin, a phospholipid found in cell membranes. They are associated with antiphospholipid syndrome, which increases the risk of bl…
Category: Inflammation & Immune
Also known as: anti-cardiolipin, anti cardiolipin, cardiolipin antibody, acl, anticardiolipin igg, anticardiolipin igm, antikardiolipinska antitela
Reference range: 0–20 GPL U/mL (Source: ABIM)
Standard unit: GPL U/mL
High values may indicate
High anti-cardiolipin antibody levels may indicate antiphospholipid syndrome, which increases the risk of deep vein thrombosis, pulmonary embolism, stroke, and recurrent pregnancy loss. They may also be seen in systemic lupus erythematosus.
Low values may indicate
Low or negative anti-cardiolipin antibody levels are normal and suggest a lower risk of antiphospholipid syndrome.
Frequently asked questions
- What is a normal Anti-Cardiolipin Antibody level?
- A typical reference range for Anti-Cardiolipin Antibody is 0–20 GPL U/mL (source: ABIM). Reference ranges vary by laboratory, age, and sex, so always compare against the range on your own lab report.
- What units is Anti-Cardiolipin Antibody measured in?
- Anti-Cardiolipin Antibody is most commonly reported in GPL U/mL. Labs in different countries may use other units — you can convert between them with BloodId's blood test unit converter.
- Where do Anti-Cardiolipin Antibody reference ranges come from?
- BloodId uses ABIM standard reference ranges and educational information from MedlinePlus (see our methodology). Reference ranges still vary by lab, age, and sex, so always compare against your own report.
- Can I track Anti-Cardiolipin Antibody over time?
- Yes. Upload results from any lab and BloodId charts your Anti-Cardiolipin Antibody over time against its reference range, so you can see whether the trend is rising, falling, or stable.
Related biomarkers
Source: MedlinePlus, U.S. National Library of Medicine
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