Quick Facts
- Sample: Blood
- Fasting: No special preparation is required.
- Turnaround: 3-4 business days. May take longer based on weather, holiday, or lab delays.
What's Included
Biomarkers tested may vary slightly between labs. Please see the sample report for detailed biomarker information.
Magnesium RBC
Ionized Calcium
Vitamin D 25-Hydroxy
Vitamin D 1,25-Dihydroxy (Calcitriol)
- Calcitriol (1,25 di-OH Vit D): Measures the active form of vitamin D in the blood. This test helps assess how the body regulates calcium and phosphorus levels.
- Vitamin D, 1,25 (OH)2, Total(Quest Only): Measures the total amount of active vitamin D2 and D3 in the blood. This test helps evaluate vitamin D activity and calcium balance.
- Vitamin D2, 1,25 (OH)2(Quest Only): Measures the active vitamin D2 form in the blood. This test helps assess vitamin D levels and metabolism.
- Vitamin D3, 1,25 (OH)2(Quest Only): Measures the active vitamin D3 form in the blood. This test helps assess vitamin D levels and calcium regulation.
Benefits
- Measures magnesium inside red blood cells, not just in serum.
- Reports ionized calcium, the active form of calcium in serum.
- Includes both inactive and active forms of vitamin D.
- Combines magnesium, calcium, and vitamin D markers in one panel.
- Gives you results to share with your healthcare provider.
Who Is This Test For?
- You want to check your magnesium status at the red blood cell level.
- You and your healthcare provider are reviewing your calcium levels.
- You want to look at your vitamin D status.
- You are interested in the active hormone form of vitamin D.
- You want magnesium, calcium, and vitamin D results from one panel.
How It Works
- Order Your Test Online
- Visit a Local Lab
- Get Results Online
FAQ
1. Do I need to fast or prepare for this test?
No special preparation is required. You can have your blood drawn without changing your usual routine.
2. How quickly will I get results?
Expect results in 3-4 business days. Weather, holidays, or lab delays may extend that timeframe.
3. What can my results tell me?
Together, these tests offer a view of magnesium, calcium, and vitamin D status. Magnesium and calcium results reflect mineral levels, while the two vitamin D tests reflect inactive and active forms of the vitamin. Each marker contributes its own type of information, so they are best viewed as complementary pieces rather than a single answer.
4. How do I interpret the results?
Interpretation depends on patterns across your results and on your clinical context, such as symptoms, medical history, medications, and other lab findings. A single marker rarely tells the whole story, and the markers in this panel need not move in the same direction. Your healthcare provider can help you make sense of them together.
Disclaimer: Reference ranges may vary by laboratory. Listed ranges are general guidelines and may differ from those used by the performing lab. Always consult your healthcare provider for interpretation.
5. What should I do if my results are abnormal?
Start by scheduling a review with a qualified healthcare provider. One out-of-range value does not provide a complete picture, and patterns across several results may call for clinical interpretation. Your provider will decide whether any further evaluation is appropriate for you.
Pre-test preparation
No special preparation is required.
LC Sample ReportQD Sample ReportNotice: This is a sample report. Reporting format and ranges are subject to change.
Contact us with any questions or concerns.
CPT Code(s): See Individual Tests
Biomarkers Tested (7):- Calcitriol(1,25 di-OH Vit D)
- Calcium, Ionized, Serum
- Magnesium, RBC
- VITAMIN D, 1,25 (OH)2, TOTAL
- Vitamin D, 25-Hydroxy
- VITAMIN D2, 1,25 (OH)2
- VITAMIN D3, 1,25 (OH)2
Notice: Biomarkers tested may vary slightly between labs. Please see the sample report(s) for detailed biomarker information.
Preparation:No special preparation is required.
Test Results:
3-4 business days. May take longer based on weather, holiday, or lab delays.
