Test library
Stachybotrys Mold Allergy Test
A Black Mold allergy test measures IgE antibodies to Stachybotrys chartarum, a mold linked to water-damaged buildings. It helps assess mold sensitization when respiratory or nasal symptoms persist in damp environments.
Order Black Mold (Stachybotrys chartarum) Allergy Test
Order online and visit a local collection site, or choose an at-home kit where available. No referral and no insurance required.
Order Black Mold (Stachybotrys chartarum) Allergy Test- Typical turnaround
- 1-3 business days
- Starting price
- From $49
- Results
- Confidential, online
Quick answer
The Black Mold allergy test, also called Stachybotrys chartarum testing, uses a blood sample to measure immunoglobulin E antibodies against this mold. Stachybotrys is often found on materials that stay wet for long periods, such as drywall, wood, and paper. The test helps show whether the immune system is sensitized to it, and a qualified healthcare provider interprets the result.
What this test measures
Stachybotrys chartarum is a mold species that grows on wet, cellulose-rich building materials. It is sometimes called black mold because of its dark appearance, and it has been studied in connection with symptoms reported in water-damaged buildings. Exposure happens when spores or mold fragments become airborne and are inhaled.
The test measures allergen-specific IgE in serum using a laboratory immunoassay. It reports a quantitative level and a reactivity class for Stachybotrys chartarum. Laboratories may also include the older name Stachybotrys atra and report cross-reactive mold allergens, since many molds share overlapping proteins.
A positive result shows sensitization to the mold, not that it is the cause of a specific illness or that a building is contaminated. Clinicians review the finding with the person's symptoms and environment. People with persistent respiratory or nasal symptoms in damp spaces should discuss the result with a qualified healthcare provider.
- Stachybotrys chartarum-specific IgE antibodies
- Stachybotrys atra-specific IgE antibodies
- Total serum IgE
- Quantitative allergen-specific IgE level
- IgE reactivity class for Stachybotrys chartarum
- Cross-reactive fungal allergens
- Related mold spore allergens within the panel
Why people order this test
- Investigate persistent nasal or respiratory symptoms in a damp building
- Assess mold sensitization as part of a broader allergy workup
- Review symptoms that worsen in water-damaged spaces
- Compare reactivity across several mold species
- Provide context before discussing environmental changes with a provider
- Clarify sensitivity when a mold panel is ordered
How to prepare
No fasting is required for this blood test. A sample is collected from a vein, typically at the arm. Follow any specific instructions from the laboratory, particularly if the test is part of a larger panel.
Understanding your results
Results are usually reported within one to three business days. The report shows the specific IgE level and reactivity class for Stachybotrys chartarum. Elevated results suggest sensitization, and a healthcare provider can explain what the finding means for a particular person.
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Frequently Asked Questions
What is Stachybotrys chartarum?
It is a mold species that grows on wet, cellulose-rich materials. It is sometimes called black mold and has been studied in connection with symptoms reported in water-damaged buildings.
Is Stachybotrys atra the same mold?
Yes. Stachybotrys atra is an older name for Stachybotrys chartarum, and both names refer to the same organism.
Does a positive result mean my home has mold?
No. The test shows sensitization in the person, not contamination in a building. Environmental assessment is a separate process.
How is the sample collected?
A small blood sample is drawn from a vein. The serum is then tested for IgE antibodies that react to the mold.
Should I fast before the test?
Fasting is not required for this test unless it is bundled with another panel that calls for it.
Ready to get tested?
Order online and visit a collection site near you, or choose a mail-in kit. No referral and no insurance required.
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