What's this test for?

This test is ideal if you're experiencing muscle cramps, weakness, fatigue, irregular heartbeat, or tingling in your hands and feet. It helps if you have kidney stones, bone problems, or digestive issues that might be affecting how your body handles magnesium. A 24-hour urine collection gives a fuller picture of your magnesium levels than a single blood draw.

How should I prepare for this test?

How can I naturally support healthy magnesium levels? Eating magnesium-rich foods like leafy greens, nuts, seeds, whole grains, and beans can help keep your levels steady. Staying well hydrated and limiting excess caffeine, alcohol, and sugary drinks also supports better magnesium balance, since these can increase how much magnesium your body loses in urine. Some people find magnesium supplements helpful, but it's best to start with food sources and reasonable lifestyle changes first.

What's included in this test?

This test measures magnesium and creatinine in a urine sample collected over a full 24 hours. Magnesium is a mineral your body needs for muscle and nerve function, heart rhythm, and bone strength, while creatinine helps confirm the urine collection was complete and accurate. Together they give a more reliable picture of how your kidneys are handling magnesium than a single blood test.

What happens after I get my results?

Your results will show up in your account with the normal range clearly explained next to your value. Depending on whether your magnesium is high or low, next steps might include adjusting your diet, reviewing supplements or medications, or staying better hydrated, and retesting in a few weeks to check progress. If your levels are extremely abnormal, seek medical care right away since this can affect your heart and muscles. You can download the full lab report anytime and use the trends feature to watch how your magnesium changes over time.

When will I get my results?

Results are typically ready within about 7 days after the lab receives your 24-hour urine sample. You'll get a notification once your report is available in your account. The 7-day window allows time for careful lab processing since urine magnesium testing requires precise measurement across the full collection period.

Who should consider this test?

People with unexplained muscle cramps, weakness, irregular heartbeat, or persistent fatigue may want to consider this test. It's also useful for those with kidney stones, osteoporosis, digestive conditions that affect nutrient absorption, or anyone taking medications known to affect mineral levels. If you've had abnormal blood magnesium results before, this urine test can add more detail.

What symptoms indicate I may need this test?

Common symptoms linked to magnesium imbalance include muscle twitches or cramps, weakness, fatigue, nausea, irregular heartbeat, and numbness or tingling. Some people also notice mood changes, poor sleep, or frequent headaches. If you have several of these symptoms along with kidney stones or digestive issues, this test can help clarify what's going on.

What does high urine magnesium mean?

High magnesium in your urine can mean your kidneys are losing too much of this mineral, sometimes due to certain medications, high alcohol intake, or kidney conditions. This can lead to low magnesium in your blood even though more is being excreted. Cutting back on alcohol, reviewing medications, and increasing magnesium-rich foods are practical first steps.

What does low urine magnesium mean?

Low magnesium in your urine often means your body is holding onto magnesium because your overall levels are too low, which can happen with poor diet, digestive absorption problems, or certain health conditions. It can also simply reflect low dietary intake. Focusing on magnesium-rich foods and staying consistent with hydration are good starting points, with retesting to confirm improvement.

How often should I retest?

If you're making diet or lifestyle changes to correct an abnormal result, retesting in 4 to 6 weeks is a reasonable timeframe to see if your levels have shifted. If your levels were normal and you're just monitoring general health, checking once or twice a year is usually enough. Anyone with ongoing symptoms or ongoing kidney issues may benefit from more frequent tracking.

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.

Magnesium Urine Test - Kidney & Mineral Balance

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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