What's this test for?

This test is ideal if you're experiencing easy bruising, frequent nosebleeds, heavy menstrual bleeding, or prolonged bleeding after cuts, dental work, or surgery. It also helps if you have a family history of von Willebrand disease or unexplained bleeding episodes that concern you. Checking how well your blood clots can help explain these symptoms and guide next steps.

What happens after I get my results?

Your results will show up in your account with the normal range clearly explained next to your value. If your activity level comes back low, simple next steps include avoiding blood-thinning medications like aspirin before procedures, informing dentists or surgeons ahead of time, and retesting to confirm the result since levels can shift with stress, illness, or hormone changes. If a value comes back extremely low along with active bleeding, seek medical care right away. You can download the full lab report anytime and use the trends feature to track your results over time.

What symptoms indicate I may need this test?

Common signs include bruising easily without a clear cause, nosebleeds that happen often or last a long time, heavy or prolonged periods, and bleeding gums. Excessive bleeding after minor cuts, dental work, or surgery is another key sign. If these symptoms run in your family, that's also a good reason to check your levels.

How can I naturally support healthy blood clotting?

Eating foods rich in vitamin K, like leafy greens, supports your body's natural clotting process. Staying hydrated and avoiding excessive alcohol also helps your blood function normally. Talk with a healthcare resource before starting new supplements, since some, like fish oil or high-dose vitamin E, can thin the blood further.

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. You'll be able to view, download, and track them as soon as they're available.

Who should consider this test?

This test is a good fit for anyone with a personal or family history of von Willebrand disease or other bleeding disorders. It's also useful if you've had unexplained bruising, heavy periods, or bleeding that takes longer than usual to stop. People preparing for surgery or dental procedures with a bleeding history may also want to check their levels beforehand.

What is von Willebrand Factor and why does it matter?

Von Willebrand Factor is a protein in your blood that helps platelets stick together and plug up injuries so bleeding stops. It also protects another clotting protein called Factor VIII. When VWF doesn't work properly or is too low, blood doesn't clot as well, which can lead to excessive bleeding.

What does low von Willebrand Factor activity mean?

A low result means your blood may not clot as efficiently as it should, which can explain symptoms like easy bruising, frequent nosebleeds, or heavy bleeding. This pattern is seen in von Willebrand disease, the most common inherited bleeding disorder. Retesting and reviewing your personal and family bleeding history can help clarify what's going on.

What causes low von Willebrand Factor activity?

Low activity is often inherited, meaning it runs in families due to genetic differences in how the protein is made or how well it works. It can also occur due to certain thyroid conditions, some medications, or blood type, since people with type O blood tend to naturally have lower levels. Illness or hormonal changes can also cause temporary dips.

How often should I retest?

If your first result is borderline or low, retesting after a few weeks can help confirm whether it's a consistent pattern or a temporary dip. People with a confirmed bleeding disorder may want to retest periodically or before major surgeries and dental work. Otherwise, retesting isn't usually needed unless new symptoms appear.

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.

VWF Activity Test - Bleeding Disorder Screening

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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