Amino Acids, Mixed, Urine — Qualitative
A urine test that screens for the presence of a mixture of amino acids and evaluates their relative pattern.
["This test provides a broad screening view of amino acids in your urine and may help investigate certain inherited metabolic or kidney conditions."]
Key facts at a glance
- LOINC
- 15140-7
- Short code
- Amino Acids mixC Ur Ql
- Synonyms
- Amino Acids mixC Ur Ql
- Category
- urine
- 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
What is this test?
This qualitative test examines urine for a mixture of amino acids, the protein building blocks used by the body. It reports which amino acids are detected rather than providing precise measurements.
Why might I need this test?
A clinician may order this test to look for abnormal urinary amino acid patterns associated with inherited metabolic conditions, problems with amino acid transport, or certain kidney disorders. It may also be used alongside other laboratory and genetic evaluations.
How is the test performed?
A urine specimen is collected and analyzed in the laboratory to identify the amino acids present. The exact laboratory method and the way the qualitative pattern is reported can vary, so results should be interpreted by your healthcare professional.
How do I prepare for the test?
Follow the urine collection instructions provided by your clinician or laboratory, including whether a first-morning, timed, or fasting specimen is required. Diet, supplements, and medicines can affect urinary amino acids, so tell the care team about relevant products and medications.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
An unusual urine amino acid pattern may occur with inherited disorders of amino acid metabolism, impaired kidney handling of amino acids, or certain nutritional and medication-related effects. Results should be interpreted with symptoms, medical history, and other laboratory tests because diet and supplementation can also influence the pattern.
Short name
Urine Amino Acids, Qualitative
Frequently asked questions
Is this the same as a quantitative amino acid test?
Does an abnormal result confirm a genetic disorder?
Can diet or medicines affect the results?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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