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Organic acids profile (24-hour urine collection)

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

This test measures various organic acids found in your urine over a 24-hour period. It helps identify imbalances that may indicate metabolic or genetic conditions.

Quick summary

["This test checks for unusual acid buildup that could signal metabolic disorders."]

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

Key facts at a glance

LOINC
55818-9
Short code
Organic Acids Stl-sCnt
Synonyms
Organic Acids Stl-sCnt
Category
chemistry
Sample
stool
Container
Clean container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 g
Stability
Refrigerated: 24h, Frozen: 7d
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your doctor may recommend this test if you have symptoms like frequent tiredness, unusual smells in urine, or a family history of metabolic disorders. It’s also used to monitor conditions like mitochondrial disorders, organic acidemias, or other metabolic issues.

What to Expect Before the Test

You’ll need to collect all urine for 24 hours, starting after your first morning pee. Store samples in a refrigerator and bring the entire collection to the lab. Follow any specific instructions your doctor provides.

What the Results Mean

Elevated or unusual levels of certain organic acids may point to metabolic disorders, genetic conditions, or other health concerns. Your doctor will interpret results in relation to your symptoms and medical history.

Common Conditions Monitored

This test helps diagnose or track conditions like methylmalonic acidemia, propionic acidemia, or other organic acidemias. It may also be used for research or specialized metabolic evaluations.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Organic Acids Urine Test

Frequently asked questions

What does a ‘positive’ or abnormal result mean?
An abnormal result means your body may be producing or excreting unusual amounts of organic acids. This could signal a metabolic disorder or other health issue that needs further evaluation by a specialist.
How long does it take to get results?
Results are typically available within 1 to 2 weeks, depending on lab processing and follow-up steps. Your doctor will contact you once they’re ready.
Can I take medications before this test?
Yes, but always check with your doctor first. Some medications may affect urine composition or test results. Follow their guidance on timing and dosage adjustments.
  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