What's this test for?

This test is ideal if you're experiencing bone pain, muscle weakness, or unexplained fatigue that could be linked to a phosphorus imbalance. It's also useful if you have kidney issues, parathyroid problems, or are on a special diet and need to see how much phosphorus your body is taking in and getting rid of. Since urinary phosphate closely tracks what you eat, this test helps show whether your kidneys and diet are working together properly.

How should I prepare for this test?

How can I naturally support healthy phosphate balance? Eating a balanced diet with moderate amounts of dairy, meat, nuts, and whole grains helps keep phosphorus levels steady without overloading your system. 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 in a healthy range.

What's included in this test?

This test measures phosphate levels in a full 24-hour urine collection alongside creatinine, which helps confirm the collection was complete and accurate. Looking at phosphate together with creatinine gives a clearer picture of how well your kidneys are filtering and excreting phosphorus based on what you eat.

What happens after I get my results?

Your results will show up in your account with the normal range for 24-hour urine phosphate clearly explained next to your value. Depending on where you land, next steps might include adjusting how much phosphorus-rich food you eat, cutting back on phosphate additives, or retesting in a few weeks to see if changes made a difference. You can download a standard lab report from your account at any time, and if you test again later, the trends feature lets you compare results over time to spot patterns.

When will I get my results?

Results for this test are typically ready within about 7 days after your 24-hour urine sample is received at the lab. Because this is a timed collection, the turnaround starts once the full sample is dropped off, not on the day you begin collecting. You'll get a notification as soon as your results are available in your account.

Who should consider this test?

People with kidney disease, parathyroid disorders, or a history of kidney stones may want to consider this test to see how their body is processing phosphorus. It's also useful for anyone on a restricted diet, such as a renal diet, who needs to track phosphorus intake and excretion closely. If you've had unusual blood phosphate results, this urine test can help clarify what's driving them.

What symptoms indicate I may need this test?

Muscle weakness, bone pain, unusual tiredness, or numbness and tingling can sometimes point to a phosphate imbalance worth checking. If you've noticed changes in appetite, joint discomfort, or have a known kidney or parathyroid condition, this test can help fill in the picture. Symptoms alone don't confirm a phosphate problem, so testing gives a clearer answer than guessing.

What does high phosphate in urine mean?

A high level of phosphate in your urine usually means your body is excreting more phosphorus than usual, which can happen with high dietary intake, certain parathyroid conditions, or some kidney disorders. It can also occur if your bones are releasing extra phosphate into your system. Cutting back on phosphorus-heavy processed foods and staying hydrated are simple first steps while you consider retesting.

What does low phosphate in urine mean?

Low urinary phosphate can mean your body isn't taking in enough phosphorus, or that your kidneys are holding onto more of it than normal. This can be tied to a low-phosphorus diet, certain hormone imbalances, or reduced kidney filtering. If your levels come back low along with symptoms like weakness or bone pain, it's worth a follow-up test to confirm the pattern.

How often should I retest?

If you're making dietary changes or managing a kidney or parathyroid condition, retesting every few months can help you track whether your phosphate levels are moving in the right direction. If your first result was within a healthy range and you have no symptoms, annual testing is usually enough. Anyone with ongoing kidney issues may benefit from more frequent monitoring based on their overall health picture.

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 with Creatinine

Phosphate, 24-Hour Urine with 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?

How should I prepare for this test?

What's included in this test?

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24-Hour Urine Phosphate Test with Creatinine

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

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