Vitamin D Test | Great Plains

Ordering the Vitamin D Test | Great Plains

The Vitamin D Test from Great Plains helps measure the levels of 25-hydroxyvitamin D2 and D3 in your blood, which are important for bone strength, calcium absorption, and immune system support. Interestingly, vitamin D also plays a role in regulating genes that affect inflammation and mood, which is not widely known.

Ordering this test can help you:

• Identify if low vitamin D is contributing to muscle weakness or joint pain
• Monitor bone density and risk for osteoporosis or rickets
• Assess vitamin D status for those with limited sun exposure
• Track vitamin D levels if you have chronic fatigue or unexplained tiredness
• Support immune function, especially during cold and flu season

Who Should Consider Vitamin D Screening

People who spend most of their time indoors, such as someone working long hours in an office and feeling tired with frequent muscle aches, may benefit from checking their vitamin D status. This test is also helpful for those who have been told they have low bone density, are experiencing hair loss, or have a family history of osteoporosis.

Ordering this test may be useful in these situations:

• Persistent joint or muscle pain without a clear cause
• Frequent respiratory infections, especially during winter months
• Unexplained mood swings or symptoms of depression
• Difficulty maintaining normal calcium levels despite supplements
• People with darker skin living in northern climates, as they may need more sunlight to produce enough vitamin D

Testing for vitamin D can help pinpoint if low levels are affecting your bones, muscles, or immune system, and can guide your doctor in making specific recommendations. Delaying this test could mean missing the chance to address low vitamin D before it leads to more serious bone or immune problems.

Preparing for Vitamin D and Bone Health Testing

Fasting is not required for this test, but always check the kit instructions for any special preparation steps. Make sure to follow whatever guidance your doctor or healthcare practitioner gives you, as this helps ensure your sample is collected correctly and your results are as useful as possible.

Labs Included When Ordering Your Vitamin D Test | Great Plains

Reference ranges may change slightly as labs update their guidelines, so always check your report for the most current information.

Vitamin D Test | Great Plains FAQ

Is there Vitamin D Test | Great Plains testing near me?

This is a test kit that you can collect locally, and you can find a nearby draw location using the link at the top of the page. For those experiencing ongoing muscle aches or bone pain, having a convenient collection site makes it easier to get tested without delay.

How do I interpret the test results?

While your treating physician should review your results, you can also use our one-on-one test results review service with our clinical team for a detailed explanation and next steps.

What is the cost of the test?

The price you see includes standard shipping to you and back to the lab, but local draw fees may apply. Ordering this test can help you address symptoms like fatigue or bone pain sooner, so you can start making changes that support your recovery.

How often should I retest?

Retesting every 3-6 months is recommended, especially if you are adjusting your vitamin D intake or have ongoing symptoms. Regular testing helps track your progress and ensures your vitamin D levels stay in the right range for bone and immune support.

How accurate is the test?

This test uses liquid chromatography-tandem mass spectrometry (LC-MS/MS), which is highly specific and sensitive for measuring vitamin D metabolites, with a specificity of 99% and sensitivity of 98%. TrueHealthLabs.com partners with CLIA-certified and CAP-certified laboratories to uphold rigorous testing standards for dependable results.

Important Notes

• This test can not be collected or mailed from New York State. Contact us with questions.