What's this test for?

This test is ideal if you're experiencing unexplained muscle weakness, fatigue, or changes in how much muscle you have. It's also useful if you or someone monitoring your health wants a closer look at how your kidneys are filtering waste, since creatine and creatinine levels reflect both muscle activity and kidney function. Many people use this test alongside other kidney or muscle-related evaluations for a fuller picture of what's going on.

What happens after I get my results?

Your results will show up in your account with the normal reference range explained next to your value, so you can see exactly where you fall. If your level is outside the normal range, simple next steps like adjusting protein intake, staying hydrated, or retesting in a few weeks are usually a good starting point, and any dangerously abnormal result should prompt you to seek medical care right away. A standard lab report is available to download directly from your account. You can also track this result over time using the trends feature to see how your levels change.

Who should consider this test?

People who have muscle-wasting symptoms, are being monitored for kidney health, or have conditions that affect muscle breakdown may want this test. Athletes and bodybuilders sometimes use it too, since heavy training and muscle turnover can affect creatine levels. It's also a helpful check if a recent blood test showed unusual kidney markers and you want more detail from a full 24-hour urine collection.

How can I naturally support healthy muscle and kidney function?

Staying well hydrated throughout the day helps your kidneys flush out waste products like creatine more efficiently. Eating a balanced diet with moderate, not excessive, protein supports healthy muscle turnover without overloading your kidneys. Regular, moderate exercise helps maintain muscle mass, while avoiding excessive use of creatine supplements can prevent artificially high readings. Limiting alcohol and staying consistent with sleep also support overall muscle and kidney health.

When will I get my results?

Results from this 24-hour urine creatine test are typically ready within about 7 days after the lab receives your sample. You'll get a notification once your results are posted to your account. Because this test requires a full day of urine collection, the total time from starting your collection to seeing results includes both the collection period and this lab processing time.

What symptoms indicate I may need this test?

Muscle weakness, unexplained muscle loss, unusual fatigue, or noticeable changes in urine output can all be reasons to consider this test. Some people get it done when they've had abnormal kidney-related results on a previous blood test and want more detail. Changes in physical performance, especially paired with other symptoms like swelling or unusual thirst, are also worth checking out with this test.

What does a high creatine result mean?

A higher-than-normal result can point to increased muscle breakdown, which can happen with intense exercise, muscle injury, or certain muscle conditions. It can also occur if you're taking creatine supplements, since these directly raise the amount your body excretes. If your level is high and you're not sure why, cutting back on supplements and rechecking after a few weeks is a reasonable first step.

What does a low creatine result mean?

A lower-than-expected result can reflect reduced muscle mass, which is common with aging, prolonged inactivity, or certain chronic illnesses. It can also show up in people with lower overall muscle mass to begin with, such as smaller-framed individuals. If this result is unexpected, looking at recent activity levels and nutrition, then retesting, is a sensible next step.

How often should I retest?

If your first result is within the normal range and you have no ongoing symptoms, retesting once a year or as part of routine monitoring is usually enough. If you're actively working on a health or fitness goal, or if your first result was abnormal, retesting every few months can help you track progress. Always retest sooner if you notice new or worsening symptoms.

What should I do if my results are abnormal?

Start by reviewing the explanation next to your result in your account to understand how far outside the normal range you are. Simple lifestyle steps like adjusting hydration, protein intake, or supplement use can help for mild changes. If your result is significantly abnormal or you're experiencing symptoms like swelling, severe fatigue, or major changes in urination, seek medical care promptly.

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.

Creatine 24-Hour Urine Test - Muscle & Kidney 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

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