Understanding Lab Tests for Mold Allergy
Written by Private MD Labs Medical Writing Team • Last Updated: September 8, 2025
Mold allergies occur when your immune system overreacts to mold spores in the environment. These microscopic particles are present both indoors and outdoors, and can trigger allergic symptoms in sensitive individuals. Blood tests can definitively diagnose mold allergies by measuring specific antibodies your body produces in response to different mold allergens.
Top Recommended Test
Respiratory Allergy Profile Region XIV: CA, central valley
This regional panel is designed for the California Central Valley area and tests for multiple mold allergens including Alternaria alternata, Aspergillus fumigatus, Cladosporium herbarum, and Penicillium notatum. It measures specific IgE antibodies to identify which mold spores are triggering allergic symptoms like sneezing, itching, runny nose, and nasal congestion.
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How Blood Tests Diagnose Mold Allergies
When you're allergic to mold, your immune system produces immunoglobulin E (IgE) antibodies specific to particular mold species. Blood tests can detect and measure these specific IgE antibodies, providing clear evidence of which molds trigger your allergic reactions. This testing is especially valuable because it can identify specific mold allergens even when symptoms overlap with other respiratory conditions.
Other Relevant Tests
Respiratory Allergy Panel Region III: GA, northern FL, SC
This comprehensive panel tests for IgE antibodies to common molds in the southeastern United States, including Penicillium notatum. It helps identify specific mold allergens that may be causing respiratory symptoms like coughing, wheezing, and skin reactions in individuals living in or traveling to Georgia, northern Florida, and South Carolina.
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Common Mold Allergens Detected
These tests can identify allergies to several important mold species. Alternaria alternata is commonly found outdoors and peaks in warm, dry weather. Aspergillus fumigatus can be found both indoors and outdoors and may cause more severe reactions. Cladosporium herbarum is one of the most common outdoor molds, while Penicillium notatum is frequently found indoors, especially in damp areas. Each of these molds can trigger symptoms ranging from mild nasal congestion to more severe respiratory reactions.
Benefits of Regional Testing Panels
Regional allergy panels are specifically designed to test for the most common allergens in particular geographic areas. This targeted approach is more relevant and cost-effective than broader panels, as it focuses on the molds you're most likely to encounter in your specific region. The geographic specificity helps healthcare providers develop more effective treatment and avoidance strategies.
Important Considerations
The information here is for educational purposes only and is not a substitute for professional medical advice. Always consult with a healthcare provider for proper diagnosis and treatment. Your doctor can help determine which regional panel is most appropriate based on your location and symptoms.
