Alpha-Gamma-Amanitin, Urine — Mass Concentration
A urine test that measures alpha-gamma-amanitin, a poisonous mushroom toxin, to help evaluate suspected amatoxin poisoning.
["A detectable urine level can support the diagnosis of poisonous mushroom exposure."]
Key facts at a glance
- LOINC
- 74104-1
- Short code
- Alpha+gamma-amanitin Ur IA-mCnc
- Synonyms
- Alpha+gamma-amanitin Ur IA-mCnc
- Category
- liver
- Sample
- urine
- Container
- Sterile urine container
- Units
- N/A
- Ref low
- 44
- Ref high
- 147
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- ia
- CPT
- 84075
- SNOMED
- 27550007
- 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 test measures the amount of alpha-gamma-amanitin in urine. Alpha-gamma-amanitin is a toxin found in certain poisonous mushrooms, including some Amanita species.
Why might I need this test?
It may be ordered when someone has eaten wild mushrooms and has symptoms suggesting amatoxin poisoning, such as severe nausea, vomiting, abdominal pain, or changes in liver function. The result can help clinicians confirm suspected exposure.
How is the test performed?
A urine specimen is collected and analyzed in a laboratory using a validated chemical method. The laboratory reports the toxin concentration in the urine.
How do I prepare for the test?
Follow the laboratory's instructions for urine collection and timing. If mushroom poisoning is suspected, seek emergency medical care immediately rather than waiting for this test; treatment and poisoning-center consultation should not be delayed.
Reference range
Adult: 44-147 U/LN/A
No special preparation required. Avoid fatty meals before the test if possible.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Detecting alpha-gamma-amanitin in urine supports exposure to amatoxin-containing mushrooms. A positive result may help explain severe gastrointestinal symptoms and the risk of liver injury, even if symptoms begin after a delay. A negative result does not completely exclude poisoning because toxin levels can fall over time or fall below the test's detection limit.
Short name
Alpha-Gamma-Amanitin, Urine
Frequently asked questions
Does a positive result mean I ate a poisonous mushroom?
Can this test rule out mushroom poisoning?
What should I do if I suspect mushroom poisoning?
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