# Antiparietal Cell Antibody (APCA)

> This test measures antibodies that attack parietal cells, which are specific cells in the stomach lining that help the body absorb vitamin B12. It helps show whether the immune system is damaging the stomach's ability to process nutrients, which is often the cause of vitamin B12 deficiency and anemia.

- Labcorp code: 006486
- Category: [Autoimmunity](https://picardo.health/labs/tests/autoimmunity.md)
- Sample: blood
- Labcorp turnaround: 2–4 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=006486&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.