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Acetoacetate in urine (qualitative)

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

This test checks for the presence of ketones, a byproduct of fat breakdown, in your urine. Ketones can appear when your body uses fat for energy instead of glucose, often due to conditions like diabetes or fasting.

Quick summary

["Ketones in urine may signal your body isn’t getting enough glucose for energy, which can be a sign of metabolic issues."]

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

Key facts at a glance

LOINC
63373-5
Short code
Ketones 4h p Glc Ur Ql Strip
Synonyms
Ketones 4h p Glc Ur Ql Strip
Category
glucose
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
true
Population
adult
Sex
all
Age range
18–65 years
Method
test-strip
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 Might You Need This Test?

Your healthcare provider may order this test to monitor conditions like diabetes, starvation, or prolonged vomiting. It can also help diagnose or manage metabolic disorders or check for ketosis, especially in people with type 1 diabetes.

What to Expect Before the Test

You’ll likely be asked to collect a fresh urine sample in a clean container. No special preparation is usually needed, but follow your provider’s instructions carefully to ensure accurate results.

What the Results Mean

Results are qualitative (positive or negative). A positive result means ketones are present in your urine, which may indicate your body is breaking down fat for energy. A negative result means no ketones were detected.

Common Conditions Linked to Ketone Detection

High levels of ketones in urine can be linked to conditions like diabetic ketoacidosis (a serious complication of diabetes), starvation, severe vomiting, or prolonged fasting. Always discuss results with your healthcare provider.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Ketones in urine can signal your body’s metabolic state, particularly when glucose levels are low or when fat metabolism is increased. This is especially important for people with diabetes or those managing dietary changes.

Short name

Urine Ketones (Qualitative)

Frequently asked questions

What causes ketones to appear in urine?
Ketones in urine typically appear when your body breaks down fat for energy instead of glucose. This can happen due to low blood sugar (hypoglycemia), prolonged fasting, severe illness, or conditions like diabetes.
How long does it take to get results from this test?
Results are usually available within a few hours to a couple of days, depending on your lab’s processing time. Your healthcare provider will contact you with the results.
Can I eat or drink before this test?
No special diet is required, but avoid excessive alcohol or sugary drinks before testing, as they may affect ketone levels. Follow your provider’s specific instructions for the best results.
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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