What's this test for?

This test is ideal if you're experiencing swelling in your legs or ankles, unusual fatigue, changes in how much you urinate, or if you're concerned about how well your kidneys are working. It's also useful if you have a family history of kidney disease, diabetes, or high blood pressure, since these conditions can affect kidney function over time. The test gives a clear picture of how efficiently your kidneys are filtering waste from your blood.

What happens after I get my results?

Your results will show up in your account along with the normal range for creatinine clearance so you can see exactly where you fall. If your number is outside the normal range, simple next steps include drinking more water, cutting back on excess protein or salt, and rechecking your levels in a few months to track changes. If a result looks dangerously low, it's a good idea to seek medical care right away. You can download a standard lab report anytime and use the trends feature to watch how your kidney function changes over time.

What symptoms indicate I may need this test?

Swelling in your hands, feet, or face, feeling unusually tired, changes in urination frequency or color, and persistent high blood pressure can all be signs your kidneys need a closer look. Nausea, muscle cramps, or trouble concentrating are other symptoms some people notice when kidney function is off. If you have diabetes or a family history of kidney problems, it's smart to check even without obvious symptoms.

How can I naturally support kidney function?

Staying well hydrated is one of the easiest ways to help your kidneys do their job efficiently. Cutting back on processed foods, excess salt, and too much animal protein can also ease the workload on your kidneys. Regular exercise and keeping your blood pressure and blood sugar in a healthy range go a long way toward protecting kidney health over time.

When will I get my results?

Results for the Creatinine Clearance test are typically ready within about 7 days of your lab visit. Once processed, they'll be posted directly to your online account where you can view and download them. You'll get a notification as soon as your report is ready to check.

Who should consider this test?

This test is a good fit for anyone with risk factors for kidney problems, like diabetes, high blood pressure, or a family history of kidney disease. It's also useful for people noticing symptoms like swelling, fatigue, or changes in urination. Athletes or people on high-protein diets may also want to check in on kidney function periodically.

What is creatinine clearance and why does it matter?

Creatinine clearance measures how well your kidneys filter a waste product called creatinine out of your blood and into your urine. Since creatinine is produced at a fairly steady rate by your muscles, this test gives a reliable snapshot of your kidney's filtering ability, known as the glomerular filtration rate (GFR). Tracking this number matters because it can catch kidney problems early, often before other symptoms appear.

What does a low creatinine clearance result mean?

A lower than normal result can mean your kidneys aren't filtering waste as efficiently as they should, which may point to reduced kidney function. This can happen for many reasons, including dehydration, high blood pressure, diabetes, or aging. If your number comes back low, drinking more water, cutting back on salt and protein, and rechecking in a few months are good first steps, along with seeking medical care if the drop is significant.

What causes abnormal creatinine clearance results?

Dehydration, high blood pressure, diabetes, certain medications, and muscle-related conditions can all throw off your creatinine clearance numbers. Intense exercise or a very high-protein diet right before testing can also temporarily raise creatinine production and skew results. Age and muscle mass naturally affect the baseline too, which is why tracking your own trend over time is more useful than comparing to a single average.

How often should I retest?

If your first result comes back normal and you have no risk factors, checking again once a year is usually enough. If you have diabetes, high blood pressure, or a previous abnormal result, retesting every 3 to 6 months helps you catch changes early. Using the trends feature in your account makes it easy to see whether your kidney function is staying stable 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.

Creatinine Clearance Test - Check Kidney Function

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]

Creatinine Clearance Test — Kidney Function Check