# Macroprolactin

> This test measures the presence of macroprolactin, which occurs when prolactin hormone molecules clump together into large, inactive forms. It helps show whether a high prolactin result is due to active hormones that cause symptoms or these harmless clumps that do not affect your health. This distinction helps rule out a false diagnosis of hyperprolactinemia, potentially avoiding unnecessary medication or MRI scans. However, it does not determine the underlying cause of high prolactin if the active form is actually elevated.

- Labcorp code: 500324
- Category: [Hormones](https://app.picardo.health/labs/tests/hormones.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=500324&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.