# Acetylcholine Receptor (AChR)-binding Antibodies

> This test measures specific antibodies in your blood that mistakenly attack the receptors where nerves communicate with muscles. It helps show whether symptoms like muscle weakness or drooping eyelids are caused by myasthenia gravis, a condition that disrupts muscle control. Doctors use this result to help distinguish this autoimmune disorder from other causes of fatigue. However, a normal result does not completely rule out the disease, as some people with the condition do not have these specific antibodies.

- Labcorp code: 085902
- 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=085902&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.