What's this test for?

This test is ideal if you're experiencing ongoing sneezing, itchy eyes, coughing, or congestion that seems to flare up in damp or moldy environments. Cladosporium is one of the most common outdoor and indoor molds, and repeated exposure can trigger allergy-like symptoms in sensitive people. This test checks whether your immune system has built up an IgG4 antibody response to this specific mold.

What happens after I get my results?

Your results will show up in your account with a clear explanation of the normal range for the IgG4 antibody level, so you can see exactly where you fall. If your level comes back elevated, simple next steps include reducing mold exposure at home or work, using a dehumidifier, and retesting in a few months to see if the level changes. A standard lab report is available to download from your account anytime, and you can track this value over time using the trends feature to see if your exposure or sensitivity is improving.

What is Cladosporium mold sensitivity and why does it matter?

Cladosporium is a common mold found both outdoors on plants and indoors in damp areas like bathrooms, basements, and window sills. When your immune system reacts to it repeatedly, it can produce antibodies like IgG4, which may relate to ongoing respiratory irritation or allergy-type symptoms. Knowing your antibody level helps you connect nagging symptoms to a specific environmental trigger you can actually address.

When will I get my results?

Results are typically ready within about 7 days of your lab visit. Once processed, they're posted directly to your secure online account, where you can view and download them at your convenience.

Who should consider this test?

This test is a good fit for people with unexplained respiratory symptoms, especially those who notice symptoms worsen in older buildings, basements, or humid climates. It's also useful for anyone who has recently discovered visible mold in their home and wants to understand if it may be affecting their health. People with asthma or chronic sinus issues that don't have a clear cause may also benefit.

What symptoms indicate I may need this test?

Common signs include a runny or stuffy nose, itchy or watery eyes, chronic cough, wheezing, throat irritation, and skin rashes that seem to worsen indoors or in damp spaces. If you notice these symptoms improve when you leave a certain building or environment, that's a strong clue mold exposure could be involved. Fatigue and headaches paired with respiratory symptoms can also be a sign worth checking.

How can I naturally reduce mold exposure at home?

Keep indoor humidity below 50% using a dehumidifier or air conditioner, and fix any leaks or water damage quickly since mold thrives in moisture. Improve ventilation in bathrooms and kitchens with exhaust fans, and clean visible mold promptly with a vinegar or mild bleach solution. Using a HEPA air purifier and removing damp carpets or fabrics can also help lower your overall exposure.

What does a high Cladosporium IgG4 result mean?

A high result means your immune system has been producing more antibodies in response to repeated Cladosporium exposure, suggesting your body has encountered this mold frequently. This doesn't necessarily mean you're having an active allergic reaction right now, but it does point to meaningful past or ongoing exposure. Reducing mold sources in your environment and retesting later can help you see if the level comes down.

What causes a high Cladosporium IgG4 level?

The most common cause is repeated or long-term exposure to mold spores, often from damp basements, bathrooms, old carpeting, or poor ventilation. Living or working in older buildings, humid climates, or spaces with previous water damage can increase your exposure. Seasonal outdoor mold spore counts, especially in fall, can also contribute to elevated levels.

How often should I retest?

If your first result is elevated, retesting every 3 to 6 months after making changes to reduce mold exposure can help you track progress. If your result is normal but symptoms persist, it may be worth testing again after any major environmental change, like moving or renovating. Regular retesting also helps confirm whether your mold-reduction efforts are actually working.

Getting your blood test with us is easy, private & backed by the power of science.Long story short: In the test options, use the filters or search box to narrow your choices and find the test you want. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy! If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.

How do I know which test to get?

In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option. Just text or call us at 754-799-7833, email us at support@privatemdlabs.com, and we'll gladly help you. We've got your back and reply quickly.

When will my lab results be available?

Most test results will be available within 1–3 business days. Once they're ready, we'll send an email and text message to let you know. After your blood draw, just hang tight and don't worry – we'll keep you updated and in the loop! If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com, and we'll gladly help you.

Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?

Absolutely! We totally understand that errors can happen. No worries, we're here to help you. Just reach out to us via text at 754-799-7833 or shoot us an email at support@privatemdlabs.com. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you. There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out. Our lab requires an address to be listed to generate an order.

Do you accept health insurance?

Only HSA & FSA is accepted. Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts. This policy applies to all insurance companies, including federal health insurance programs like Medicare. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com.

Can I cancel my order?

Yes. We get it – sometimes your needs change. As long as your samples haven’t been collected yet, we’re happy to help you cancel your order. If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com. You can read more about our cancellation policy here.

How can I find a lab location near me?

During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp). Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.

Cladosporium Mold IgG4 Test - Allergy Sensitivity Check

Getting your blood test with us is easy, private & backed by the power of science.

Long story short:

In the test options, use the filters or search box to narrow your choices and find the test you want.
If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!

754-799-7833

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