High Anticardiolipin antibody: what it means
A Anticardiolipin antibody result above the normal range is considered high. Here is what a raised Anticardiolipin antibody can point to, and when it is worth discussing with a doctor.
Reference range: Typically <20 GPL/MPL U/mL negative (assay-dependent); one of the antiphospholipid antibodies — a persistently positive result is linked to blood clots and pregnancy loss (antiphospholipid syndrome)
Understand your full resultWhat a high Anticardiolipin antibody can mean
- Antiphospholipid syndrome — the key association, especially when persistently positive with a clot or pregnancy complication.
- An increased tendency to blood clots — in veins or arteries (e.g. deep vein thrombosis, stroke).
- Recurrent miscarriage or other pregnancy complications — a defining clinical feature.
- Often found with lupus — the syndrome can be secondary to another autoimmune disease.
- A transient positive — can follow infections or some medications; needs repeat testing to confirm.
When to discuss with a doctor
Anticardiolipin antibody is tested when antiphospholipid syndrome is suspected — for example after an unexplained blood clot, a stroke at a young age, recurrent miscarriage or stillbirth, or in someone with lupus. Because a single positive can be transient, a positive result is confirmed by repeating it after at least 12 weeks; a persistently positive result together with a clinical event points to the syndrome, which is diagnosed and managed by a specialist. This matters because it influences important decisions about blood-thinning treatment and the management of pregnancy. A positive result on its own, without a clinical event, is not the same as having the syndrome and needs careful interpretation. Mediora.AI can surface a positive anticardiolipin antibody so the clotting-risk pattern is visible in your results, but confirming the diagnosis and deciding on any treatment belongs with your doctor and specialist.
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Upload your test - freeMediora.AI is informational - interpretation, not a diagnosis. A single out-of-range value is common and often benign; always discuss decisions with your doctor.