What's this test for?

This test is ideal if you're experiencing symptoms like swelling, fatigue, changes in urination, or if you just want to check how well your kidneys are working. It's also useful if you have a family history of kidney disease, high blood pressure, or diabetes, since these conditions can affect kidney function over time. Many people also use it to keep tabs on kidney health while taking certain medications or during dialysis treatment.

What happens after I get my results?

Your results will be available in your account, with each value's normal range clearly explained so you know exactly where you stand. If your creatinine level is outside the normal range, simple next steps like drinking more water, cutting back on excess protein or salt, or retesting in a few weeks may be recommended, and if the result is significantly abnormal, seeking medical care promptly is a good idea. You can download a standard lab report straight from your account at any time. Plus, the trends feature lets you track your creatinine levels over time to see how your kidney health changes.

Who should consider this test?

Anyone with a family history of kidney disease, diabetes, or high blood pressure should consider this test, since these conditions raise the risk of kidney problems. It's also a smart choice for people taking medications that can affect the kidneys, athletes tracking muscle breakdown, or anyone noticing changes in urination, swelling, or fatigue. Even without symptoms, checking creatinine periodically is a simple way to stay ahead of kidney issues.

How can I naturally support healthy kidney function?

Staying well-hydrated by drinking enough water throughout the day helps your kidneys filter waste more efficiently. Eating a balanced diet with moderate protein and limiting salty or processed foods can also ease the workload on your kidneys. Regular exercise and keeping blood pressure and blood sugar in check go a long way toward protecting kidney health over time.

When will I get my results?

Results are typically ready within about 7 days after your sample is processed at the lab. Once ready, they'll show up automatically in your online account, so there's no need to call or wait for a phone update. You'll be able to view, download, and track your results as soon as they're posted.

What symptoms indicate I may need this test?

Symptoms like unusual swelling in your legs, ankles, or face, feeling unusually tired, changes in how much or how often you urinate, or foamy urine can all point to kidney issues worth checking. Nausea, muscle cramps, or trouble concentrating can also sometimes be linked to kidney function problems. If you're noticing any of these signs, a creatinine test is a straightforward first step.

What is creatinine and why does it matter?

Creatinine is a waste product made by your muscles that your kidneys are supposed to filter out of your blood and remove through urine. When kidneys aren't working well, creatinine can build up in the blood instead of being cleared out. Measuring creatinine gives a simple snapshot of how effectively your kidneys are doing their filtering job.

What does high creatinine mean?

A high creatinine level usually means your kidneys aren't filtering waste as efficiently as they should, which can happen with dehydration, intense exercise, certain medications, or underlying kidney conditions. It's worth drinking more water, cutting back on heavy protein intake, and retesting to see if the level comes back down. If it stays high or you feel unwell, seeking medical care is a good next step.

What does low creatinine mean?

Low creatinine is less common and can sometimes be linked to lower muscle mass, pregnancy, or certain diets. In many cases it's not concerning on its own, especially if you don't have other symptoms. If it's unexpected or paired with other unusual results, retesting or looking at the full picture of your health is a reasonable next step.

How often should I retest?

If your levels are normal and you have no risk factors, checking once a year as part of routine health monitoring is usually enough. If you have diabetes, high blood pressure, or a previous abnormal result, retesting every few months can help you catch changes early. Your trends dashboard makes it easy to see patterns and decide when it's time to check again.

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 Blood Test - Kidney Function 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]