What's this test for?

This test is ideal if you're experiencing swelling in your legs or ankles, unusual fatigue, changes in urination, or if you have risk factors like diabetes or high blood pressure that can affect your kidneys. It's also useful if you've been told you have reduced kidney function and need a closer look at how well your kidneys are filtering waste. Many people order this test simply to establish a baseline or monitor known kidney concerns over time.

What's included in this test?

This profile combines several calculations that work together to give a full picture of kidney health, going beyond a single number. Creatinine and Cystatin C are both used to estimate how well your kidneys filter waste, since each can be thrown off by different factors like muscle mass or inflammation, so combining them gives a more accurate result. The urine albumin-creatinine ratio adds another layer by checking whether your kidneys are leaking protein, which is an early warning sign of kidney damage.

What happens after I get my results?

Your results will show up in your account with each value's normal range clearly explained, so you can see exactly where you stand. If your eGFR or urine albumin-creatinine ratio falls outside the expected range, simple next steps include cutting back on sodium and processed foods, staying well hydrated, and rechecking your levels in a few months to watch for changes. If any result comes back significantly abnormal, especially a very low eGFR, it's important to seek medical care promptly. You can download the full lab report anytime and use the trends feature to track your kidney health over time.

How can I naturally support kidney health?

Drinking enough water throughout the day helps your kidneys flush out waste more efficiently. Cutting back on salt, processed foods, and excess protein can reduce the workload on your kidneys. Keeping blood pressure and blood sugar in a healthy range, staying active, and avoiding overuse of over-the-counter pain relievers also go a long way in protecting kidney function.

When will I get my results?

Results are typically ready within about 7 days of your lab visit. Once processed, they'll be uploaded directly to your account where you can view and download them at your convenience. You'll be able to see each value alongside its reference range to understand what it means.

Who should consider this test?

Anyone with diabetes, high blood pressure, a family history of kidney disease, or unexplained swelling and fatigue should consider this test. It's also a smart choice for people over 60, those on long-term medications that affect the kidneys, or anyone wanting a baseline check of their kidney function. If you've had abnormal kidney results before, this panel helps track changes over time.

What symptoms indicate I may need this test?

Swelling in the legs, ankles, or around the eyes, foamy or discolored urine, persistent fatigue, and changes in how often you urinate can all point to kidney issues. Some people also notice trouble concentrating, muscle cramps, or loss of appetite. If you're experiencing any combination of these, this test can help clarify what's going on.

What does a low eGFR mean?

A low eGFR means your kidneys aren't filtering waste from your blood as efficiently as they should, which can be an early sign of kidney disease. Mild decreases can sometimes be improved with lifestyle changes like better hydration, lower sodium intake, and blood pressure control. If your eGFR is very low, this is a sign to seek medical care right away rather than waiting for a routine follow-up.

What causes an elevated urine albumin-creatinine ratio?

An elevated uACR often happens when the small filters in your kidneys become damaged, letting protein leak into the urine. Common causes include long-term high blood sugar, high blood pressure, and certain inflammatory conditions. Dehydration or intense exercise right before testing can also temporarily raise this number, so retesting is often helpful to confirm results.

How often should I retest?

If your results are within the normal range and you have no major risk factors, retesting once a year is usually enough to keep an eye on things. If you have diabetes, high blood pressure, or a previous abnormal result, checking every 3 to 6 months gives a clearer picture of any trends. Using the trends feature in your account makes it easy to spot changes early.

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.

Kidney Function Test - eGFR & Kidney Disease 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]

Kidney Function Blood Test with eGFR & uACR

Kidney Profile with Reflex to eGFR (Creatinine-Cystatin C)

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.

Find a lab near you

Kidney Function Blood Test with eGFR & uACR

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

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