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Interpret Your Urine Ketones Results

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Urine Ketones Normal Ranges

Urine ketones (ketonuria) indicates that the body is breaking down fat as its primary energy source instead of glucose — producing ketone bodies (acetoacetate, beta-hydroxybutyrate, acetone).

Reference RangeUnitNotes
Negative / Non-reactivequalitativeNegative = normal; any positive requires evaluation

Also reported in: mg/dL.

Common Causes of High Urine Ketones

Diabetic Ketoacidosis (DKA) — Type 1 most common; also type 2 with severe illness or omitted insulinStarvation and prolonged fasting (>12–24 hours)Very-low-carbohydrate (ketogenic) diet

Common Causes of Low Urine Ketones

Negative urine ketones in a well-controlled diabetic patient is normalNote: blood beta-hydroxybutyrate is more sensitive than urine acetoacetate — urine ketones may be negative early in DKA

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Reference ranges, causes, symptoms, preparation, and FAQs.

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