Antibody Detection to Amatoxins (e.g., *Amanita* toxins) in Whole Blood
This test checks for antibodies in your blood that may indicate exposure to toxins from certain mushrooms, such as those in the *Amanita* genus (e.g., fly agaric). Antibodies suggest your body has recognized these toxins, which can be harmful if ingested.
["Detects potential mushroom poisoning exposure through immune system response."]
Key facts at a glance
- LOINC
- 92793-9
- Short code
- CFAMNAA
- Synonyms
- C famata DNA Bld Pos Ql NAA+probe
- Category
- chemistry
- Sample
- whole-blood
- Container
- Positive blood culture bottle (aerobic or anaerobic) confirmed as positive by continuous monitoring blood culture system
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- probe-amp-tar
- CPT
- 87149
- SNOMED
- 122451000119108
- Specimen volume
- 1-2 mL aliquot taken from positive blood culture broth for molecular testing
- Stability
- Blood culture broth: stable at room temperature or 35-37°C until flagged positive; post-positive, process within 24 hours; extracted nucleic acid stable at 2-8°C for up to 48 hours or -70°C for long-term storage
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 2–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may recommend this test if you or someone you know has consumed mushrooms from the *Amanita* genus, experienced symptoms like nausea, vomiting, or abdominal pain shortly afterward, or if you live in an area where toxic mushrooms grow. It can also be used in cases of suspected poisoning to assess immune response.
What to Expect Before the Test
No special preparation is needed. You’ll provide a small sample of whole blood drawn from a vein, similar to other blood tests. The sample is sent to a lab for analysis.
What the Results Mean
Positive results indicate your immune system has detected amatoxin-related antibodies, which may suggest exposure. However, antibodies alone don’t confirm poisoning—other tests or clinical symptoms are needed for diagnosis. Negative results mean no detectable antibodies were found in this sample.
What Happens Next
If results are positive, your provider may recommend further evaluation, including symptoms monitoring, additional tests, or medical treatment if poisoning is suspected. Follow-up may depend on your symptoms and medical history.
Reference range
Negative (Candida famata DNA not detected)N/A
No special patient preparation required. Specimen is collected as part of standard blood culture collection when sepsis or bloodstream infection is suspected.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Amanita Toxin Antibody Test (bld)
Frequently asked questions
How long does it take to get results from this test?
Can I eat or drink anything before this blood test?
What are the most common symptoms of *Amanita* 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