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Calcium test for bone health, muscle function, and mineral balance

Blood Test for Bone Health and Muscle Weakness

Calcium, Serum

Google
3,138 reviews
  • Reveal bone health issues effortlessly
  • Detect calcium imbalances early
  • Clarify muscle weakness causes quickly
First results as soon as overnight*

90 day happiness guarantee

We stand behind our service

Prescription & fees included

Go directly to the lab, no extra fees

Easy to understand results

With friendly doctor's notes & guidance

Fast & convenient

Lab visit as quick as 10 mins in & out

90 day happiness guarantee

We stand behind our service

Prescription & fees included

Go directly to the lab, no extra fees

Easy to understand results

With friendly doctor's notes & guidance

Fast & convenient

Lab visit as quick as 10 mins in & out

What's this test for?

This test is ideal if you're experiencing muscle weakness, cramps, numbness or tingling in your fingers, or unexplained bone pain. It helps identify calcium imbalances that may be affecting your bone strength, muscle function, nerve health, and overall mineral balance. Many people use this test when they suspect their symptoms are related to calcium levels or have risk factors like kidney disease, parathyroid issues, or vitamin D deficiency.

What's included in this test?

Calcium

This test measures calcium, the most abundant mineral in your body that's essential for strong bones and teeth, proper muscle contraction, and nerve signal transmission. Calcium levels are tightly controlled by parathyroid hormone, vitamin D, and other factors, so abnormal results can reveal important issues with your bones, kidneys, or hormone balance. This single measurement provides critical insights into your bone health, risk for osteoporosis, kidney function, and overall mineral metabolism.

What happens after I get my results?

You'll receive detailed doctor notes in simple language explaining what your calcium levels mean for your bone health, muscle function, and overall mineral balance. These notes include personalized recommendations like dietary changes to optimize calcium intake, vitamin D supplementation suggestions, or whether you should follow up with an endocrinologist. You'll also get the standard lab report and can track your calcium levels over time using our trends feature to monitor changes as you make dietary adjustments or if you're managing a chronic condition.

Who should consider getting this test?
This test is important for people experiencing unexplained muscle weakness, cramping, or tingling sensations in their hands and feet. It's also valuable for anyone with a history of kidney disease, parathyroid disorders, osteoporosis, or those taking medications that affect calcium metabolism. Older adults, postmenopausal women, people with vitamin D deficiency, and those with chronic digestive issues that affect nutrient absorption should also consider testing.
What symptoms indicate I may need this test?
Common symptoms of calcium imbalance include muscle cramps or spasms, numbness or tingling in your fingers and toes, fatigue, brittle nails, and bone pain. Low calcium can also cause confusion, memory problems, and in severe cases, irregular heartbeat. High calcium may cause excessive thirst, frequent urination, nausea, constipation, and unexplained fatigue. If you're experiencing any of these symptoms, checking your calcium levels can provide valuable insights.
How can I naturally support healthy calcium levels?
Supporting healthy calcium levels starts with eating calcium-rich foods like dairy products, leafy greens, almonds, and fortified foods. Ensuring adequate vitamin D through sunlight exposure or supplementation helps your body absorb calcium effectively. Regular weight-bearing exercise like walking, jogging, or strength training helps maintain bone density. Limiting excessive caffeine, sodium, and alcohol consumption can prevent calcium loss from your bones.
What does high calcium mean?
High calcium levels, called hypercalcemia, can indicate overactive parathyroid glands, certain cancers, excessive vitamin D intake, or prolonged immobilization. It may cause symptoms like excessive thirst, frequent urination, kidney stones, fatigue, nausea, and confusion. High calcium can also affect your heart rhythm and may require medical evaluation to identify and address the underlying cause.
What does low calcium mean?
Low calcium levels, called hypocalcemia, may indicate underactive parathyroid glands, vitamin D deficiency, kidney disease, or malabsorption issues. It can cause muscle cramps, spasms, numbness, tingling sensations, and in severe cases, seizures or irregular heartbeat. Low calcium over time increases your risk of osteoporosis and bone fractures, making it important to address the underlying cause.
What causes abnormal calcium levels?
High calcium can be caused by overactive parathyroid glands, certain cancers, too much vitamin D or calcium supplementation, kidney problems, or certain medications like lithium. Low calcium is often caused by vitamin D deficiency, underactive parathyroid glands, kidney disease, magnesium deficiency, or digestive disorders that prevent calcium absorption like celiac disease or Crohn's disease. Sometimes calcium levels appear abnormal due to low blood protein levels, which requires further testing.
How often should I retest my calcium levels?
If you have a known parathyroid or kidney condition, your doctor will typically recommend testing every 3-6 months to monitor your condition and treatment effectiveness. If your initial test is normal but you have risk factors or symptoms, retesting annually may be appropriate. People taking medications that affect calcium or vitamin D metabolism may need more frequent testing every 6-12 months to ensure levels remain balanced.
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
Instant orders, results often overnight*
Results explained in simple language
Reviewed by US licensed doctors
Fast & confidential, we never sell or share your data
No insurance needed, transparent pricing
Demo results
Calcium 8.2 mg/dL
Demo results
Low Optimal 8.5 - 10.5 High
8.2 mg/dL

What this means

Your calcium levels are slightly below the optimal range. While this is not immediately concerning, it may contribute to muscle cramps, weakness, or tingling sensations over time. Low calcium can also affect bone density and increase your risk of osteoporosis if left unaddressed.

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More complex tests, such as hormone panels, may take up to 10–15 business days due to their 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
Book a lab
Book an appointment Visit any of our 4,000 nearby lab locations to have your samples collected. Book or walk-in
Choose a checkup
Get results Receive a clear, easy-to-digest health report by email & SMS within a few business days. Get answers, fast

Blood Test for Bone Health and Muscle Weakness

Google
3,138 reviews
  • Reveal bone health issues effortlessly
  • Detect calcium imbalances early
  • Clarify muscle weakness causes quickly

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

Google reviews 3138 reviews Next
Still got questions? Text our super-cool support team at 754-799-7833 to get help finding your ideal checkup.