Ordering the MARCoNS with Biofilm Analysis and Fungal Culture
Ordering the MARCoNS with Biofilm Analysis and Fungal Culture helps identify multiple antibiotic-resistant bacteria, biofilm presence, and fungal organisms in the nasal passages. This test is especially useful for those with ongoing sinus or respiratory symptoms that have not improved with standard treatments. Interestingly, biofilms can shield bacteria and fungi from antibiotics, making infections harder to treat and sometimes leading to persistent symptoms.
When ordering this test, you gain specific benefits:
- Detects antibiotic-resistant staph bacteria in the nasal cavity
- Identifies biofilm formation that may protect bacteria and fungi from treatment
- Finds fungal organisms like Candida, Aspergillus, and Stachybotrys
- Helps guide targeted therapy for chronic sinus or respiratory issues
- Supports monitoring of treatment effectiveness for mold or fungal exposure
Who Should Consider Fungal and Biofilm Nasal Swab Testing
People who have tried several rounds of antibiotics for sinus infections but still experience nasal congestion, headaches, or brain fog may benefit from this test. For example, someone who has lived in a water-damaged home and now deals with constant sinus drainage and fatigue could use this test to pinpoint hidden infections.
Ordering this test may also be helpful in these situations:
- Frequent sinus infections that do not respond to standard treatments
- Chronic coughing, sneezing, or post-nasal drip with no clear cause
- Unexplained respiratory symptoms after mold exposure at work or home
- Persistent nasal polyps or inflammation despite medical care
- People with immune dysfunction who develop sinus pain after travel to humid climates
This test can reveal hidden bacteria and fungi that may be missed by routine cultures, allowing for more targeted treatment and symptom relief. Delaying this test could allow resistant bacteria or fungi to persist, making future treatment more complicated and possibly leading to longer-lasting symptoms.
Preparing for Nasal Microbiology and Fungal Culture Screening
Fasting is not required for this test; you can eat and drink as usual before your sample is collected. Always follow any instructions your doctor or healthcare provider gives you to make sure your sample is collected correctly and your results are as useful as possible.
Labs Included When Ordering Your MARCoNS with Biofilm Analysis and Fungal Culture
| Test Name | Reference Range | What This Test Measures | Low and High Levels of This Marker |
|---|---|---|---|
| MARCoNS (Multiple Antibiotic Resistant Coagulase Negative Staphylococci) | Not detected | This test checks for the presence of antibiotic-resistant staph bacteria in the nasal passages, which can contribute to chronic sinus and respiratory symptoms. |
High levels mean antibiotic-resistant staph bacteria are present and may be causing ongoing symptoms.
Low levels mean these bacteria are not detected, reducing the likelihood of resistant infection. |
| Biofilm Analysis | Not detected | This analysis identifies biofilm structures that can protect bacteria and fungi from antibiotics, making infections harder to treat and more persistent. |
High levels mean biofilm is present, which may shield microbes from treatment and prolong symptoms.
Low levels mean no biofilm is detected, making infections easier to treat. |
| Fungal Culture Evaluation for Yeast/Mold | No growth | This test detects fungal organisms such as Candida, Aspergillus, Cladosporium, Penicillium, Mucor, and Stachybotrys in the nasal passages, which can cause or worsen sinus and respiratory symptoms. |
High levels mean fungal organisms are present and may be contributing to ongoing symptoms.
Low levels mean no fungal growth is detected, suggesting fungi are not a factor in symptoms. |
Reference ranges may change slightly as labs update their methods and standards over time.
MARCoNS with Biofilm Analysis and Fungal Culture FAQ
Is there MARCoNS with Biofilm Analysis and Fungal Culture testing near me?
This is a home test kit that you can collect locally, and you can check the draw location link at the top of the page. For those dealing with ongoing sinus congestion or mold exposure, having a convenient collection option helps you get answers quickly without needing to travel to a clinic.
How do I interpret the test results?
While your treating physician should always review your results, we also offer a one-on-one test results review with our clinical team to help you understand your results and next steps.
What is the cost of the test?
The price listed for this test includes standard shipping to you and return shipping to the lab, though draw fees may apply. Ordering this test can help you identify hidden infections, which may speed up recovery from persistent sinus or respiratory symptoms.
How often should I retest?
Retesting is usually recommended every 3 to 6 months if you are undergoing treatment for chronic sinus or fungal issues, or if symptoms return. Regular retesting helps track progress and ensures that any resistant bacteria or fungi have been cleared.
How accurate is the test?
This test uses advanced microbiology culture and molecular identification methods, with a specificity of 98% and sensitivity of 97%. TrueHealthLabs.com partners with CLIA-certified and CAP-certified laboratories to uphold rigorous testing standards for dependable results.
Important Notes
- The test can be collected and mailed from New York state. Contact us with questions
Medical Review Board
Reviewed by Jeff Donohue M.D. from Body Logic and Brady Hurst DC, CCCN. Written by True Health Lab’s team of editorial health contributors.
Disclaimer: This information is for educational purposes only and not intended as medical advice. Consult your healthcare provider for personalized guidance.
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