What's this test for?

This test is ideal if you're experiencing unexplained fatigue, bone pain, frequent infections, or if you have a history of a plasma cell disorder that needs monitoring. It looks at proteins made by your immune system to help spot imbalances that can point to certain blood or immune conditions. It's also commonly used to track how a known condition is responding over time.

What's included in this test?

This test measures the two types of light chains your immune system produces, along with the ratio between them. Looking at both the individual amounts and their ratio helps show whether your immune system is producing these proteins in a balanced way, which matters for spotting certain blood and immune conditions early.

What happens after I get my results?

Your results will show up in your account with each value's normal range clearly explained. If your kappa/lambda ratio falls outside the expected range, simple next steps include retesting in a few months to check for changes or watching for new symptoms like bone pain or unusual tiredness. If a value comes back significantly abnormal, it's important to seek medical care right away rather than wait. You can download a standard lab report anytime and use the trends feature to track your levels over time.

How can I naturally support healthy immune protein balance?

Staying well hydrated helps your kidneys filter proteins efficiently, and eating a balanced diet with enough protein and antioxidants supports overall immune health. Regular exercise and good sleep also help keep your immune system functioning well. That said, if your levels are abnormal, lifestyle changes alone aren't a substitute for retesting and monitoring.

When will I get my results?

Results are typically ready within about 7 days of your sample being collected. You'll be notified as soon as your report is available in your account, so there's no need to call or follow up.

Who should consider this test?

People with a family history of plasma cell disorders, those experiencing unexplained bone pain or repeated infections, and anyone already diagnosed with a condition affecting immune proteins should consider this test. It's also useful for people who've had abnormal protein results on previous blood work and want a closer look.

What symptoms indicate I may need this test?

Common symptoms include persistent bone pain, unexplained fatigue, frequent or unusual infections, and unexplained weight loss. Some people also notice swelling or numbness if excess proteins are affecting nerves or kidneys. If you're dealing with a combination of these, this test can help clarify what's going on.

What does a high kappa/lambda ratio mean?

A high or abnormal ratio can mean your immune system is producing one type of light chain protein in excess, which sometimes happens with certain blood or immune conditions. It doesn't automatically mean something serious is wrong, but it's a signal worth following up on with retesting. Tracking the trend over a few tests gives a clearer picture than one result alone.

What causes an abnormal light chain ratio?

An abnormal ratio can be caused by infections, kidney function changes, autoimmune conditions, or disorders affecting plasma cells. Sometimes it's temporary and related to a short-term illness, while other times it reflects a more ongoing condition. Retesting helps tell the difference between a one-time blip and a lasting pattern.

How often should I retest?

If your first result is normal and you have no symptoms, retesting once a year or as part of routine wellness monitoring is reasonable. If you have an abnormal result or a known condition, retesting every 3-6 months helps track changes more closely. Your specific retest schedule may vary based on how your levels behave 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.

Kappa/Lambda Light Chain Test - Immune Protein 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]