# Osmolality, Urine

> This test measures the concentration of particles, such as salts and waste, in your urine to determine how well your kidneys are balancing water. It helps show whether your body is holding onto too much fluid or losing too much, which is useful for evaluating dehydration, excessive thirst, or frequent urination.

- Labcorp code: 003442
- Category: [Heart & Metabolic](https://picardo.health/labs/tests/heart-metabolic.md)
- Sample: urine
- 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=003442&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.