# Anticardiolipin Antibodies (ACA), IgG, Quantitative

> This test measures the level of anticardiolipin antibodies, which are proteins produced by the immune system that mistakenly attack substances found on cell membranes. It is often used to investigate the cause of unexplained blood clots or recurrent miscarriages.

- Labcorp code: 161810
- Category: [Autoimmunity](https://picardo.health/labs/tests/autoimmunity.md)
- Sample: blood
- Labcorp turnaround: 1–3 days
- Collection: free at a Labcorp location, or $75.00 at home.
- Without a doctor: yes. People order it themselves, with no doctor's visit or referral.
- Price: shown on the review page its order link opens. Opening it orders nothing.
- Order link: https://app.picardo.health/labs/order?tests=161810&ref=assistant

## About ordering

People order for themselves, with no doctor's visit or referral, and results arrive in their Picardo account. Ordering is open to adults 18 and over in the US, except New York, New Jersey, Rhode Island, Pennsylvania, Maryland, Massachusetts, Hawaii and Maine. General health information, not medical advice.