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Ketones - urine - Results

Alternative Names

Ketone bodies - urine; Urine ketones: acetone, acetoacetic acid, and beta-hydroxybutyric acid

Normal Values:

A negative test result is normal. When ketones are present in the urine, the results are usually listed as small, moderate, or large with these corresponding values:

Small: < 20 mg/dL

Moderate: 30 - 40 mg/dL

Large: > 80 mg/dL

Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.

What abnormal results mean:

A positive test may indicate:

  • Abnormal nutritional conditions
    • Anorexia
    • Fasting
    • High protein or low carbohydrate diets
    • Starvation
  • Disorders of increased metabolism
    • Acute or severe illness
    • Burns
    • Fever
    • Hyperthyroidism
    • Nursing a baby (lactation)
    • Post-surgical condition
    • Pregnancy
  • Metabolic abnormalities, including uncontrolled diabetes or glycogen storage disease
  • Vomiting frequently over a long period of time
  • Reviewed last on: 11/12/2007
  • Charles Silberberg, D.O., Private Practice specializing in Nephrology, Affiliated with NY Medical College, Division of Nephrology, Valhalla, NY. Review provided by VeriMed Healthcare Network.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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