II. Mechanism
-
Urine Dipstick detects acetic acid (Acetoacetate)
- In Diabetic Ketoacidosis, Beta-Hydroxybutyrate (primary Ketone) is converted to Acetoacetate
- Confirmatory Test
- Urine
- Acetest tablet test
- Serum Ketone (preferred)
- Beta-Hydroxybutyrate
- Preferred Serum Ketone test
- Basic chemistry panel
- Ketoacidosis
- Low serum bicarbonate
- Increased Anion Gap
- Normal or resolving Ketoacidosis
- Normal serum bicarbonate
- Normal Anion Gap
- Ketoacidosis
- Beta-Hydroxybutyrate
- Urine
III. Interpretation: Normal
- Negative
IV. Causes: True Positive Urine Ketones
- Dehydration
- Starvation or Low Carbohydrate Diets (Ketogenic Diet)
- Diabetic Ketoacidosis (DKA)
- Alcoholic Ketoacidosis
- Isopropanol toxicity
- Pregnancy
V. Causes: False Positive Urine Ketones
- Low Urine pH (acidic)
- Increased Urine Specific Gravity
- Phenolphthalein
- Levodopa
VI. Causes: False Negative Urine Ketones
- Delayed Urine Exam
- Not all Ketones (Beta-Hydroxybutyrate, Acetoacetate, Acetone) are detected by all Urine Dipstick tests
- Most Urine Dipsticks detect Acetoacetate
Images: Related links to external sites (from Bing)
Related Studies
| Concepts | Laboratory Procedure (T059) |
| SnomedCT | 144521000, 167294004, 144530008, 167285005 |
| English | Urine ketone test NOS, acetonuria (lab test), urine ketones (lab test), urine ketones, urine tests nonspecific abnormal findings acetonuria, acetonuria, Urine ketone test, ketones, ketone tests urine, urine ketones test, ketones urine test, urine ketone test, Urine ketone test NOS (procedure), Urine Ketones Test, Urine ketone test (procedure) |
| Spanish | prueba de cetonuria, SAI, prueba de cetonuria, SAI (procedimiento), Urine ketone test NOS, prueba de cetonuria (procedimiento), prueba de cetonuria |
