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24-hour urine calcium test for kidney stone risk and bone health screening

Calcium 24-Hour Urine Test — Kidney Stone Risk Screening

Calcium, 24-Hour Urine without Creatinine

  • Screen for kidney stone risk factors
  • Check calcium balance in your body
  • Monitor bone and muscle health
$202
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First results as soon as overnight*

All results normal? Get your money back. First-time customers only. File a support ticket titled “Money Back Guarantee” with your order number within 15 days of receiving your results. STD, Sickle Cell, and gift orders aren’t eligible. Full terms apply. guarantee
No questions asked refunds
LegitScript certified

Prescription & all lab fees included

Go directly to the lab, no extra fees

Doctor's guidance included

Easy to understand results

Fast & convenient

Lab visit as quick as 10 mins in & out

  • Many results come back overnight *
  • 90-day money back guarantee
  • Save time & skip the doctor’s office
  • Lab visit as quick as 10 minutes
  • Results explained, with clear next steps
  • LegitScript certified
  • No questions asked refunds
  • The price you see is the price you pay

Prescription & all lab fees included

Go directly to the lab, no extra fees

Doctor's guidance included

Easy to understand results

Fast & convenient

Lab visit as quick as 10 mins in & out

All results normal? Get your money back. First-time customers only. File a support ticket titled “Money Back Guarantee” with your order number within 15 days of receiving your results. STD, Sickle Cell, and gift orders aren’t eligible. Full terms apply. guarantee
No questions asked refunds
LegitScript certified

What's this test for?

This test is ideal if you're experiencing recurring kidney stones or if you've been told you have a higher risk of forming them. It's also useful if you have symptoms of a calcium imbalance, like bone pain, muscle cramps, or unusual fatigue, since these can point to problems with how your body handles calcium. By measuring how much calcium leaves your body in urine over a full day, this test helps identify whether your kidneys are excreting too much or too little calcium.

What happens after I get my results?

Your results will show up in your account with the normal range clearly explained so you know exactly where your calcium excretion falls. If your levels are high, simple next steps include cutting back on salt and animal protein, staying well hydrated, and reviewing any calcium supplements or diuretics you take, then retesting in a few months. If a result comes back extremely high or low, it's a good idea to seek medical care promptly since this can signal a bone or hormone issue. You can download the full lab report anytime and use the trends feature to track your calcium levels over time.

Who should consider this test?

Anyone who has had a kidney stone or has a family history of kidney stones is a good candidate for this test. It's also helpful for people managing bone conditions, parathyroid issues, or those taking calcium supplements, vitamin D, or diuretics who want to check how these affect their calcium levels. If you've noticed symptoms like muscle weakness, bone pain, or frequent urinary tract discomfort, this test can offer useful insight.

What symptoms indicate I may need this test?
Common signs include sharp back or side pain from kidney stones, blood in your urine, or frequent urinary tract infections. Muscle cramps, bone pain, unusual tiredness, or excessive thirst can also point to a calcium imbalance worth checking. If you take calcium supplements, vitamin D, or certain diuretics and want to see how they're affecting your body, this test is a practical way to find out.
When will I get my results?
Results are typically ready within about 7 days after the lab receives your 24-hour urine collection. You'll get an email notification as soon as your report is available in your account. The turnaround gives the lab time to accurately measure calcium levels across the full collection period, which is more reliable than a single random sample.
How can I naturally support healthy calcium levels?
Staying well hydrated helps your kidneys flush out excess calcium and lowers the chance of stone formation. Cutting back on excess salt and animal protein can also reduce how much calcium your body excretes. Getting calcium from food rather than high-dose supplements, and making sure you're not overdoing vitamin D, can help keep your levels balanced.
What does high urine calcium mean?
High calcium in your urine, called hypercalciuria, means your kidneys are releasing more calcium than usual, which raises your risk of forming kidney stones. It can happen because of high dietary calcium or salt intake, certain supplements, an overactive parathyroid gland, or too much vitamin D. Cutting back on salt, staying hydrated, and reviewing your supplement use are practical first steps, with retesting to see if levels improve.
What does low urine calcium mean?
Low calcium in your urine can mean your body isn't getting or absorbing enough calcium, or that a hormone problem like an underactive parathyroid gland is at play. It's also seen with vitamin D deficiency or with certain medications like thiazide diuretics. If your levels are low, looking at your diet and vitamin D intake, along with reviewing any medications, is a reasonable next step.
What causes abnormal calcium levels in urine?
Diet plays a big role — too much calcium, salt, or protein can push levels up, while too little calcium intake can bring them down. Hormonal issues like an overactive or underactive parathyroid gland, vitamin D imbalances, and certain bone conditions also affect urinary calcium. Medications matter too: calcium supplements and loop diuretics tend to raise levels, while thiazide diuretics tend to lower them.
How often should I retest?
If your first result is outside the normal range, retesting after 2-3 months of dietary or lifestyle changes is a reasonable timeframe to see if levels have improved. If you're managing an ongoing condition like recurrent kidney stones, retesting every 6-12 months can help you track progress. Use the trends feature in your account to see how your levels change over time.
How’s this work?
Getting your blood test with us is easy, private & backed by the power of science.

Long story short:
  1. In the test options, use the filters or search box to narrow your choices and find the test you want.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!
  8. If you have any questions, please text us at 754-799-7833 or email [email protected] 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 [email protected], and we'll gladly help you. We've got your back and reply quickly.
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 [email protected]. 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 [email protected].
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 [email protected].

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 [email protected] and we'll gladly help you.

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

You get clinical lab reports & simplified health insights.
Save time & gas, go straight to the lab. Our doctors cover the rest.
Results start landing the next day after your lab visit.*
We don’t sell or share your data. Your time & privacy matter.
US-licensed doctors have your back if things get unclear.
No hidden fees, nice discounts for regular checkups.
Save a trip to the doctor, go directly to the lab
Get lab order in minutes, results come overnight*
Results explained in simple language
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Fast & confidential, we never sell or share your data
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Demo results
Urine Calcium (24-Hour) 320 mg/24hr
Demo results
Low (<100 mg/24hr) Optimal (100-250 mg/24hr) High (>250 mg/24hr)
320 mg/24hr

What this means

This result shows more calcium is being released in your urine than typical, a pattern called hypercalciuria. This can raise your risk of kidney stones and may be linked to diet, supplements, or how your body regulates calcium.

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More advanced tests may take longer due to complexity.
Here’s how easy it is to get blood work done on your terms
Choose a checkup
Order your test Save a trip to the doctor. Your results will come with clear, friendly explanations. Takes 2 minutes
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Book an appointment Visit any of our 4,000 nearby lab locations to have your samples collected. Book or walk-in
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Get results Receive a clear, easy-to-digest health report by email & SMS within a few business days. Get answers, fast

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Calcium 24-Hour Urine Test — Kidney Stone Risk Screening

  • Screen for kidney stone risk factors
  • Check calcium balance in your body
  • Monitor bone and muscle health
$202
Still got questions? Text our super-cool support team at 754-799-7833 to get help finding your ideal checkup.
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For informational purposes only. Not medical advice.