Urine analysis : Ketones


- Detects primarily Acetone & AcetoAcetic Acid, not Beta-Hydroxybutyric acid; 
- Positive: Starvation, High Fat Diet, DKA (See Hyperglycemia) Vomiting Diarrhea Hyperthyroidism, Pregnancy, Fever 
- Misc: 
- precise timing is essential or dipstick color change is meaningless & over timing by only 1-3 seconds will cause false elevation; 
- carbohydrate free diets as well as high protein and fat diets will cause ketonuria; 
- Medications which may cause False positive: 
- Levodopa 
- Phthalein compound 
- Insulin 
- Isopropyl alcohol 
- Metformin 
- Pyridium 
- Phenformin



Original Text by Clifford R. Wheeless, III, MD.

Last updated by Data Trace Staff on Wednesday, June 29, 2011 3:27 pm