What's this test for?

This test is ideal if you're experiencing unusual bruising, prolonged bleeding, or if a previous blood test showed that your blood takes too long to clot. It helps figure out whether that slow clotting is caused by a missing clotting factor or by something in your blood that's blocking the clotting process. Your results can point toward what type of follow-up testing might be needed next.

What's included in this test?

This is a specialized coagulation test rather than a panel of separate biomarkers, so it looks specifically at how your blood clots when mixed with normal plasma. This approach helps separate two very different problems - a missing clotting factor versus a substance actively interfering with clotting - which require completely different follow-up paths.

What happens after I get my results?

Your results will show up in your account along with an explanation of what the normal clotting time range looks like and where your result falls. Depending on whether your blood corrected after mixing or stayed prolonged, the report will outline what that pattern typically suggests and what kind of additional testing is commonly used to pin things down further. You can download a standard lab report right from your account at any time, and if you retest in the future, the trends feature lets you see how your results compare over time. If your result points to a serious bleeding risk, seek medical care right away rather than waiting.

How can I naturally support healthy blood clotting?

Staying well hydrated and eating foods rich in vitamin K, like leafy greens, supports your body's natural clotting process. Limiting excess alcohol and avoiding unnecessary use of blood-thinning supplements like high-dose fish oil or vitamin E can also help. That said, if a mixing study is being done because of prolonged clotting times, lifestyle changes alone won't fix an underlying factor deficiency or inhibitor, so it's important to get the recommended follow-up testing.

When will I get my results?

Results are typically ready within about 7 days of your blood draw. This test involves detailed lab analysis of how your blood clots under different conditions, which is why it takes a bit longer than routine blood work. You'll get a notification as soon as your results are posted to your account.

Who should consider this test?

This test is generally considered when a previous clotting test - like PT or aPTT - came back prolonged and the cause isn't clear. It's often used for people with unexplained bruising, heavy or prolonged bleeding, or a family history of bleeding disorders. It's also useful for people being evaluated for clotting-related complications before a planned procedure.

What symptoms indicate I may need this test?

Signs that might point to needing this test include easy or unexplained bruising, nosebleeds that are hard to stop, heavy menstrual bleeding, prolonged bleeding after cuts or dental work, or joint swelling from internal bleeding. If you've already had a screening blood test that showed a prolonged clotting time, that's typically the main trigger for this follow-up test. A family history of bleeding disorders can also be a reason to get checked.

What does it mean if my clotting time corrects after mixing?

If your clotting time returns to a normal range after your blood is mixed with normal plasma, it usually means you're missing one or more clotting factors rather than having something actively blocking the process. This pattern is called "corrected" and typically leads to more specific factor-level testing to identify exactly which factor is low. Depending on the cause, factor deficiencies can sometimes be managed with lifestyle adjustments, but often need targeted follow-up care.

What does it mean if my clotting time stays prolonged after mixing?

If the clotting time stays prolonged even after mixing with normal plasma, it suggests there's an inhibitor in your blood interfering with the clotting process, such as a lupus anticoagulant or a factor-specific inhibitor. This is called a "not corrected" result and usually calls for more targeted testing to identify the specific inhibitor. This pattern is different from a simple factor shortage and often needs a different follow-up approach.

How often should I retest?

Retesting frequency really depends on what your initial result shows and whether you're being monitored for a known condition or medication effect. If your results were abnormal, retesting after any recommended follow-up testing or treatment changes can help track whether things are improving. Using the trends feature in your account makes it easy to compare results side by side over time.

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.

Mixing Study Test - Bleeding & Clotting Time 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

[email protected]

Mixing Study Blood Test for Clotting Time Disorders

Mixing Study

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

What's this test for?

What's included in this test?

What happens after I get my results?

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

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Mixing Study Blood Test for Clotting Time Disorders

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

1,000,000+ blood tests later, here's what our customers say