What's this test for?

This test is ideal if you're experiencing symptoms related to bone health, kidney function, or mineral imbalances, such as unexplained bone pain, muscle weakness, or fatigue. It's also useful if you've been told your calcium or phosphorus levels may be off and need a closer look at how much phosphate your kidneys are removing from your body. Your practitioner may also use this to see how well your diet and kidneys are managing phosphorus levels over a full day.

What's included in this test?

This test measures the amount of phosphate removed by your kidneys over a full 24-hour period, giving a much more accurate picture than a single blood draw. Because phosphate levels can swing throughout the day based on meals and activity, collecting urine over 24 hours smooths out that variation and reflects your true dietary intake and kidney handling of phosphorus.

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 phosphate level is outside the expected range, simple next steps might include adjusting your dietary phosphorus intake or retesting in a few weeks to track changes. A downloadable standard lab report is also available directly from your account for your records. You can track this result over time using the trends feature to see how your levels shift with diet or lifestyle changes.

How can I naturally support healthy phosphate levels?

Eating a balanced diet with moderate amounts of dairy, meat, nuts, and whole grains helps keep phosphorus intake steady, since these are common dietary sources. Staying well hydrated supports your kidneys in properly filtering and excreting excess phosphate. Cutting back on processed foods and sodas, which often contain hidden phosphate additives, can also help keep levels balanced. If you have kidney concerns, reducing high-phosphorus foods like organ meats and cola drinks may be especially helpful.

When will I get my results?

Results are typically ready within about 7 days after your sample is received by the lab. You'll receive a notification once your results are posted, and you can log into your account anytime to view them. If you need results sooner for a specific reason, check your order confirmation for any expedited options.

Who should consider this test?

This test is a good option for people with a history of kidney stones, bone disorders, or unexplained mineral imbalances. It's also useful for anyone monitoring how their diet affects calcium and phosphorus balance in the body. People with chronic kidney issues who need to track phosphate handling over time may also benefit from this test.

What symptoms indicate I may need this test?

Symptoms like bone or joint pain, muscle weakness, unusual fatigue, or frequent kidney stones can be signs that your phosphate levels need checking. Numbness or tingling sensations can sometimes also point to mineral imbalances involving phosphate. If you've noticed these symptoms alongside known kidney or bone conditions, this test can provide useful information.

What does high urine phosphate mean?

A high result usually means your kidneys are excreting more phosphate than expected, which can happen with a high-phosphorus diet, certain hormone imbalances, or reduced kidney reabsorption of phosphate. This can sometimes be linked to conditions affecting bone health or parathyroid hormone levels. Cutting back on phosphorus-rich processed foods and retesting can help clarify whether diet is the main driver.

What does low urine phosphate mean?

A low result may mean your body is holding onto phosphate rather than excreting it, which can occur with low dietary intake, certain hormone conditions, or increased reabsorption by the kidneys. It could also simply reflect a diet lower in phosphorus-rich foods like meat and dairy. If your levels stay low despite normal eating habits, it may be worth investigating further with additional testing.

How often should I retest?

If your first result comes back outside the normal range, retesting after a few weeks of dietary changes is a reasonable next step to see if levels have shifted. For ongoing monitoring of kidney or bone health, retesting every few months may be recommended. Otherwise, this test is often used as a one-time check unless symptoms persist or worsen.

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.

24-Hour Urine Phosphate Test - Kidney & Bone Health

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]

24-Hour Urine Phosphate Test for Kidney and Bone Health

Phosphate, 24-Hour Urine without Creatinine

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?

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24-Hour Urine Phosphate Test for Kidney and Bone Health

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

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