What's this test for?

This test is ideal if you're experiencing symptoms that might suggest blood flow problems, such as unexplained headaches, vision changes, dizziness, or numbness in your extremities. It helps identify if your blood is thicker than normal, which can slow circulation and potentially lead to complications. Many people use this test when they have conditions like certain blood cancers or protein disorders that can affect blood thickness and want to monitor their circulatory health.

What happens after I get my results?

You'll receive detailed doctor notes in simple language explaining what your blood viscosity level means for your circulation and overall health. These notes include personalized recommendations such as hydration strategies, lifestyle modifications, or whether you should follow up with a hematologist or specialist. You'll also get the standard lab report and can track your viscosity levels over time using our trends feature to monitor how treatments or lifestyle changes are affecting your blood flow.

What's included in this test?

This test measures Viscosity, Serum. This test measures serum viscosity, which evaluates how thick your blood is and how easily it flows through your blood vessels. Higher viscosity means your blood is thicker and flows more slowly, which can reduce oxygen delivery to tissues and potentially cause circulatory complications. This measurement is particularly important for detecting conditions that increase protein levels in the blood, such as certain blood cancers or immune system disorders.

Who should consider getting this test?

This test is important for people diagnosed with or suspected of having blood cancers like multiple myeloma or Waldenström's macroglobulinemia, conditions known to increase blood thickness. It's also valuable for anyone experiencing unexplained symptoms like severe headaches, vision problems, bleeding issues, or neurological symptoms that might indicate circulation problems. Your doctor may order this if you have elevated protein levels detected in other blood work.

What symptoms indicate I may need this test?

Symptoms that may indicate increased blood viscosity include persistent headaches, vision changes or blurriness, dizziness, confusion, ringing in the ears, or numbness and tingling in your hands and feet. You might also experience nosebleeds, bleeding gums, fatigue, or shortness of breath. These symptoms occur because thickened blood flows more slowly and delivers less oxygen to your tissues.

What does high serum viscosity mean?

High serum viscosity means your blood is thicker than normal and doesn't flow as easily through your blood vessels. This can reduce oxygen delivery to your organs and tissues, potentially causing headaches, vision problems, and fatigue. Elevated viscosity is most commonly associated with conditions that increase blood protein levels, such as multiple myeloma, Waldenström's macroglobulinemia, or other blood disorders that need medical attention.

What causes high serum viscosity?

High serum viscosity is most often caused by conditions that increase protein levels in your blood, particularly immunoglobulins. The most common causes are blood cancers like Waldenström's macroglobulinemia and multiple myeloma. Other causes can include certain autoimmune diseases, dehydration, high red blood cell counts (polycythemia), or conditions that increase fibrinogen levels. These conditions cause the blood to become thicker and more resistant to flow.

How can I support healthy blood flow naturally?

While medical treatment is necessary for conditions causing high viscosity, you can support healthy circulation by staying well-hydrated throughout the day. Regular physical activity like walking or swimming helps improve overall circulation. Eating foods rich in omega-3 fatty acids (like fish, walnuts, and flaxseeds) and staying at a healthy weight can also support cardiovascular health. However, if you have elevated viscosity, these lifestyle measures should complement, not replace, medical care.

What happens if my serum viscosity is abnormal?

If your serum viscosity is elevated, your doctor will likely investigate the underlying cause through additional blood tests and possibly imaging or bone marrow studies. Treatment depends on the cause but may include plasmapheresis (a procedure to remove excess proteins from blood), chemotherapy for blood cancers, medications to reduce protein production, or intravenous fluids for hydration. Your doctor will create a treatment plan specific to your condition and monitor your progress with follow-up testing.

How often should I retest my serum viscosity?

Retesting frequency depends on your underlying condition and treatment plan. If you're newly diagnosed with a condition causing high viscosity, your doctor may test frequently during initial treatment, sometimes weekly or monthly. Once your condition is stable or in remission, testing every 3-6 months is common for monitoring. If you're being treated with plasmapheresis, testing may occur before and after each session to assess effectiveness.

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.

Blood Thickness Test - Circulation & Blood Flow 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]

Blood Test for Circulation and Blood Flow Issues

Viscosity, Serum

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

90 day happiness guarantee

Prescription & fees included

Easy to understand results

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.

Blood Test for Circulation and Blood Flow Issues

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

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