# Anticentromere B Antibodies

> This test measures the level of anticentromere B antibodies, which are proteins the immune system creates that mistakenly target parts of the body’s own cells. It is primarily used to investigate symptoms like skin tightening or extreme sensitivity to cold in the fingers and toes. Detecting these antibodies helps doctors distinguish between limited systemic sclerosis (formerly called CREST syndrome) and other autoimmune connective tissue diseases. However, a positive result alone does not confirm a diagnosis and must be evaluated alongside a physical exam and other clinical findings.

- Labcorp code: 164814
- Category: [Autoimmunity](https://app.picardo.health/labs/tests/autoimmunity.md)
- Price: shown at checkout, before payment.
- Blood draw: free at a Labcorp location, or $75.00 at home.
- Order link: https://app.picardo.health/labs/order?tests=164814&ref=assistant

## About ordering

A licensed physician reviews every order before any test is run, and results arrive in the person's 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.