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Acetoacetate in Urine (Qualitative)

Published: August 9, 2026Updated: August 16, 2026

This test checks for the presence of acetoacetate, a chemical produced when your body breaks down fat for energy, often seen in conditions like diabetes or starvation.

Quick summary

["Detecting ketones helps identify when your body may be using fat as fuel instead of sugar, which can be important for managing blood sugar levels."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
14138-2
Short code
Ketones 30M p chal Ur Ql
Synonyms
Ketones 30M p chal Ur Ql
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your healthcare provider may order this test if you have symptoms like excessive thirst, frequent urination, nausea, or unexplained weight loss. It’s also used in monitoring people with diabetes, especially those who may be at risk for diabetic ketoacidosis—a serious condition requiring urgent medical attention.

What to Expect During the Test

This is a simple urine test. You’ll likely collect a small sample in a container at home or provide a sample in a clinic. The lab will test for the presence of acetoacetate using a dipstick or other qualitative method.

Possible Causes of Positive Results

Positive results can occur in conditions like uncontrolled diabetes (both type 1 and type 2), starvation, prolonged fasting, or excessive exercise. It may also appear in people with metabolic disorders or those who are severely ill.

What to Do If Your Test Is Positive

If your test shows ketones, your healthcare provider may recommend monitoring your blood sugar closely, staying hydrated, and adjusting your diet or medication as needed. Severe cases may require immediate medical evaluation to prevent complications like ketoacidosis.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Urine Ketones (Qualitative)

Frequently asked questions

What does a positive result mean?
A positive result indicates the presence of acetoacetate in your urine, which suggests your body is breaking down fat for energy. This can be a sign of metabolic stress, such as poorly controlled diabetes or other conditions that disrupt normal metabolism. It’s important to discuss your results with your healthcare provider to determine the best next steps, especially if you have symptoms like nausea, vomiting, or unusual fatigue.
Can ketones in urine be harmful?
Yes, high levels of ketones can be harmful if they build up too quickly, leading to a condition called diabetic ketoacidosis (DKA) in people with diabetes. DKA is a medical emergency that requires immediate treatment. If you have diabetes or a history of metabolic issues, follow your healthcare provider’s advice on monitoring and managing ketone levels.
How often should I get this test?
Your healthcare provider will determine how often you need this test based on your health status, medical history, and symptoms. For people with diabetes, regular testing may be part of your ongoing management plan to prevent complications. Always follow your provider’s recommendations.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy