What's this test for?

This test is ideal if you're experiencing unexplained muscle cramps, weakness, or tingling sensations that might be related to calcium imbalances at the cellular level. It measures calcium inside your red blood cells rather than just in your blood serum, which can provide insights into how your body is actually using and storing calcium. Many people use this test when they have symptoms that suggest mineral imbalances but standard calcium tests don't explain what's happening.

What happens after I get my results?

You'll receive detailed doctor notes in simple language explaining what your red blood cell calcium levels mean for your cellular health and mineral balance. These notes include personalized recommendations like dietary adjustments, supplement suggestions, or whether you should investigate other mineral deficiencies. You'll also get the standard lab report and can track your calcium levels over time using our trends feature to see how your nutritional interventions are working.

What's included in this test?

This test measures total calcium content within red blood cells (RBC calcium). This test measures the total calcium content specifically within your red blood cells, which reflects your intracellular calcium status. Unlike standard serum calcium tests that measure calcium floating in your blood plasma, this test shows how much calcium is actually inside your cells where it performs critical metabolic functions. This can help identify cellular mineral imbalances that may not show up on routine calcium tests and provides insights into how effectively your body is utilizing calcium at the cellular level.

Who should consider this test?

This test is useful for people experiencing muscle cramps, spasms, or weakness that don't improve with standard calcium supplementation. It's also helpful for those with chronic fatigue, cardiovascular concerns, or neurological symptoms like tingling or numbness. Anyone interested in understanding their cellular mineral balance beyond standard serum tests should consider this specialized measurement.

What symptoms indicate I may need this test?

Common symptoms include frequent muscle cramps or spasms, unexplained muscle weakness, tingling or numbness in extremities, and persistent fatigue. You might also experience heart palpitations, difficulty with muscle coordination, or symptoms that suggest mineral imbalance but haven't been explained by standard blood work. If you've been taking calcium supplements without improvement in symptoms, this test can reveal if the issue is with cellular calcium utilization.

How can I naturally support healthy calcium levels?

Supporting cellular calcium balance starts with ensuring adequate dietary calcium from dairy products, leafy greens, almonds, and fortified foods. Vitamin D is crucial for calcium absorption, so get regular sunlight exposure or consider supplementation. Magnesium helps regulate calcium movement in and out of cells, so include magnesium-rich foods like pumpkin seeds, dark chocolate, and whole grains. Regular weight-bearing exercise also helps your body use calcium more effectively.

What is intracellular calcium and why does it matter?

Intracellular calcium is the calcium stored and used inside your cells, particularly in red blood cells, where it plays critical roles in cellular metabolism, muscle contraction, and nerve signaling. Unlike calcium in your blood plasma, intracellular calcium directly reflects how your cells are functioning and using this essential mineral. Imbalances in intracellular calcium can affect muscle function, energy production, and cellular communication throughout your body.

What does high red blood cell calcium mean?

Elevated calcium in red blood cells may indicate that calcium is accumulating inside cells rather than being properly regulated, which can affect cellular metabolism and function. This can sometimes be associated with certain metabolic conditions, excessive calcium supplementation, or issues with how your body regulates mineral balance. High intracellular calcium may contribute to cellular stress, fatigue, or muscle dysfunction.

What does low red blood cell calcium mean?

Low calcium in red blood cells may suggest inadequate cellular calcium storage or utilization, even if your serum calcium levels appear normal. This can contribute to muscle weakness, cramps, fatigue, and impaired cellular energy production. It might indicate that your body isn't absorbing calcium well, that you're deficient in cofactors like vitamin D or magnesium, or that cellular mechanisms for storing calcium aren't working optimally.

How often should I retest my red blood cell calcium?

If you're addressing a suspected calcium imbalance through diet or supplementation, retesting every 3-6 months can help track whether your interventions are working. For those monitoring a known condition affecting mineral balance, your healthcare provider may recommend testing every 6-12 months. If your initial results are normal but symptoms persist, consider retesting in 6 months or exploring other mineral markers that might explain your symptoms.

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.

Calcium Test for Muscle Cramps - Red Blood Cell Test

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]

Blood Test for Muscle Cramps and Calcium Balance

Calcium, Total, RBCs

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

90 day happiness guarantee

Prescription & fees included

Easy to understand results

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.

Blood Test for Muscle Cramps and Calcium Balance

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

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