What's this test for?

This test is ideal if you're currently being treated for a fungal infection with voriconazole and need to make sure the drug is working at a safe, effective level in your body. Because fungal infections often require long courses of medication, checking your drug level helps confirm you're getting enough medicine to fight the infection without taking on unnecessary side effects. It's especially useful if you're not responding to treatment as expected or if you're experiencing symptoms that could signal the dose is too high or too low.

What happens after I get my results?

Your voriconazole level will appear in your account along with the normal therapeutic range so you can see exactly where your result falls. If your level is outside the expected range, simple next steps include reviewing your dosing schedule and timing of your last dose, since both can affect the result, and retesting after any adjustment to confirm the level has stabilized. If your result is dangerously high or low, or you're having severe symptoms, seek medical care right away. You can download a standard lab report from your account at any time, and the trends feature lets you track your levels across multiple tests over time.

Who should consider this test?

Anyone currently taking voriconazole for a fungal infection, especially aspergillus or other resistant fungal species, should consider this test. It's particularly useful for people on long-term antifungal therapy, since drug levels can drift over time due to changes in metabolism, other medications, or missed doses. If you've had inconsistent results in the past or your treatment isn't working as expected, regular monitoring becomes even more important.

What symptoms indicate I may need this test?

If you're on voriconazole and notice vision changes, skin rash, liver-related symptoms like yellowing skin or eyes, or your infection symptoms aren't improving, it may be time to check your drug level. Signs the dose might be too low include your infection getting worse or coming back. Signs the dose might be too high include increased side effects like blurred vision, confusion, or stomach upset.

When will I get my results?

Results are typically ready within about 7 days of your blood draw. Once processed, they'll be uploaded directly to your secure online account where you can view and download them. You'll be able to see your voriconazole level compared to the expected therapeutic range right away.

What is voriconazole and why does drug level monitoring matter?

Voriconazole is an antifungal medication used to treat serious fungal infections, including those caused by aspergillus, especially when other treatments haven't worked or aren't tolerated well. Because everybody processes this drug differently, the amount that ends up in your bloodstream can vary a lot even at the same dose. Monitoring your level matters because too little won't clear the infection, while too much can lead to unwanted side effects.

What does a high voriconazole level mean?

A high level means more of the drug is building up in your bloodstream than expected, which raises the risk of side effects like vision changes, liver stress, or nausea. This can happen due to how your body metabolizes the drug, interactions with other medications, or a dose that's higher than needed for your body. Retesting after any dose adjustment helps confirm your level has come back into range.

What does a low voriconazole level mean?

A low level means there may not be enough of the drug in your system to effectively fight the fungal infection, which can allow it to persist or worsen. This can be caused by fast drug metabolism, missed doses, or interactions with other medications you're taking. If your infection symptoms aren't improving, this is worth addressing with a dose review and retest.

How often should I retest my voriconazole level?

Retesting frequency depends on your treatment plan, but many people on long-term therapy check levels every few weeks, especially after starting treatment or after any dose change. If your levels have been stable and your infection is responding well, less frequent testing may be appropriate. Keeping a consistent testing schedule makes it easier to spot trends before they become problems.

What should I do if my results are abnormal?

If your level is outside the normal range, start by noting the timing of your last dose relative to your blood draw, since this can affect results. Consider retesting to confirm the result, and pay close attention to any new or worsening symptoms in the meantime. If you experience severe symptoms such as vision loss, confusion, or signs of liver trouble, seek medical care immediately.

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.

Voriconazole Level Test - Antifungal Drug Monitoring

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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