What's this test for?

This test is ideal if your child's healthcare situation calls for a closer look at how their body handles phosphorus and calcium. It's often used when there are concerns about bone development, kidney function, or thyroid activity, since these organs directly affect how much phosphorus shows up in urine. It helps spot imbalances early, before they lead to bigger problems with bone growth or mineral levels.

What's included in this test?

This test measures phosphorus levels in a urine sample along with creatinine, which helps account for how concentrated or diluted the urine sample is. Looking at both together gives a more accurate picture of phosphorus balance than phosphorus alone, since creatinine reflects normal kidney filtering and adjusts for variations in urine volume.

What happens after I get my results?

Your child's results will show up in your account with the normal range clearly explained next to the value, so you can see right away whether the phosphorus and creatinine levels fall within expected limits. If something is outside the normal range, the report will point you toward simple next steps, like adjusting diet or considering a retest in a few weeks to confirm the finding. A downloadable lab report is always available in your account for your records or for sharing as needed. You can also track these levels over time using the trends feature, which is especially useful for monitoring growing children.

How can I naturally support healthy phosphorus balance?

Simple habits can help keep phosphorus levels steady, like making sure your child drinks enough water and eats a balanced diet with normal amounts of dairy, meat, and whole grains. Limiting heavily processed foods and sodas, which often contain added phosphate additives, can also make a difference. If levels are already outside the normal range, these habits work best alongside a plan to retest and monitor changes over time.

When will I get my results?

Results for this test are generally ready within about 7 days of the lab receiving the urine sample. Once ready, they'll be posted directly to your online account, where you can view the values, the normal ranges, and a plain-language explanation of what they mean.

Who should consider this test?

This test is a good fit for children who have known or suspected kidney issues, thyroid concerns, or bone growth questions that involve mineral balance. It's also useful if a routine checkup raised a flag about calcium or phosphorus levels and a closer look is needed. Parents monitoring an ongoing condition that affects bone or kidney health may also find this test helpful for tracking changes.

What symptoms might suggest my child needs this test?

Signs like unusual bone pain, slow growth, muscle weakness, or unexplained fatigue can sometimes point to a phosphorus or calcium imbalance. Changes in urination patterns or swelling can also be worth investigating, since kidney function plays a big role in phosphorus regulation. If any of these come up alongside other health concerns, this test can help clarify what's going on.

What is phosphorus and why does it matter for kids?

Phosphorus is a mineral that works closely with calcium to build strong bones and teeth, and it also plays a role in how cells produce energy. In growing children, keeping phosphorus at the right level is especially important for healthy bone development. Because the kidneys and thyroid help control how much phosphorus stays in or leaves the body, this test offers a window into how well those systems are working together.

What does a high phosphate result mean?

A higher-than-expected phosphate level in urine can mean the kidneys are releasing more phosphorus than usual, which sometimes happens with certain kidney or thyroid conditions, or from very high phosphorus intake in the diet. It doesn't automatically mean something is wrong, but it's worth looking at alongside diet, hydration, and any other symptoms. Cutting back on processed foods high in phosphate additives and rechecking levels after a few weeks is a reasonable first step.

How often should I retest?

If the first result comes back outside the normal range, retesting after making dietary or lifestyle adjustments in about 4 to 6 weeks is a common approach to see if levels have shifted. For children being monitored for an ongoing kidney, thyroid, or bone condition, more regular retesting on a schedule that fits their specific situation may be recommended. Using the trends feature in your account makes it easy to see whether values are moving in the right direction.

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.

Pediatric Phosphate Urine 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]

Pediatric Urine Phosphate & Creatinine Test

Phosphate, Pediatric 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?

What's included in this test?

What happens after I get my results?

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

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Pediatric Urine Phosphate & Creatinine Test

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

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