ketones-in-urine

Reviewed

This test measures ketone levels in your urine. Ketones are acids produced when your body breaks down fat for energy instead of glucose. While small amounts are normal, high levels can signal a dangerous condition called ketoacidosis, which is a medical emergency, especially in people with diabetes.

Preparation and collection

You may need to fast (not eat or drink) for a certain period of time before the test. Ask your healthcare provider if you need to fast or do any other preparation.

Understanding this test

Use the reference interval and units printed by the laboratory that performed the test. A result outside that interval is not a diagnosis by itself, and a result inside it does not rule out every condition. Your symptoms, history, medicines, timing, and related tests can change what the result means.

  • Results can vary depending on your diet, activity level, and other factors.
  • At-home test accuracy depends on carefully following all instructions.

What to do next

Talk with your healthcare provider about what your results mean and what follow-up is needed. If you have severe symptoms of ketoacidosis, seek immediate medical help.

Evidence source

U.S. National Library of Medicine: ketones-in-urine

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