Ketones Urine Test
Ketone is a chemical produced when insufficient insulin in the bloodstream. Our body breaks down body fat for energy. Ketones in urine signalling our body is using fat for energy instead of using glucose because not enough insulin is available to use glucose for energy.
Urine ketones are usually measured as a “spot test.” The test kit is availabe at drug store. The test kit contains dipsticks coated with chemicals which react with ketone bodies. A dipstick is dipped in the urine sample. A color change indicates the presence of ketones.
A clean-catch urine sample is needed. The clean-catch method is used to prevent germs from the penis or vagina from getting into a urine sample.
A negative test result is normal.
An abnormal result means having ketones in urine. The results are as follows:
- Small: <20 mg/dL
- Moderate: 30 to 40 mg/dL
- Large: >80 mg/dL
Abnormal result may be due to diabetic ketoacidosis (Type 1 diabetes). It occurs when the body has no insulin or the insulin does not cause the right signal in fat cells preventing fat from being broken down to form ketones.
An abnormal result may also be due to:
- Abnormal food or nutrition intake due to: anorexia nervosa
神經性厭食症 (an eating disorder), fasting, high protein or low carbohydrate diet, starvation, vomiting over a long period
- Acute or severe illness
- Disorders of increased metabolism
- Hyperthyroidism 甲狀腺功能亢進症
- Nursing a baby (lactation)
How to Test for Ketones