Ordering the Magnesium, RBC Test
Magnesium is a vital mineral that plays a crucial role in numerous bodily functions, including muscle and nerve function, blood sugar control, and blood pressure regulation. Interestingly, the Magnesium, RBC test measures the magnesium levels within red blood cells, providing a more accurate reflection of the body’s magnesium status compared to serum magnesium tests.
Understanding the benefits of this test can help you make informed decisions:
- Detects magnesium deficiency that may not show up in serum tests.
- Helps in assessing magnesium levels for those with chronic conditions.
- Monitors magnesium levels in individuals on magnesium supplementation.
- Assists in evaluating magnesium status in athletes or those with high physical activity.
- Provides insights into unexplained fatigue or muscle cramps.
Who Should Consider the Test
Individuals experiencing persistent fatigue or muscle cramps might find this test beneficial. For example, someone who exercises regularly but still feels unusually tired could benefit from checking their magnesium levels.
Consider these scenarios where the test might be useful:
- Experiencing frequent headaches or migraines.
- Having a family history of magnesium deficiency.
- Following a diet low in magnesium-rich foods.
- Undergoing treatment for chronic conditions like diabetes or hypertension.
- Experiencing unexplained anxiety or mood swings.
Consider ordering the test if any of these situations apply to you.
Preparing for the Test
No fasting is required for the Magnesium, RBC test. If you are taking any medications or supplements, it is important to follow any specific instructions provided by your healthcare provider to ensure accurate results.
Labs Included When Ordering Your Magnesium, RBC
| Test Name | Reference Range | Significance | Low and High Levels of Magnesium, RBC |
|---|---|---|---|
| Magnesium | 4.2 – 6.8 | Magnesium is essential for muscle and nerve function, as well as energy production. It is stored in bones and cells, making RBC magnesium a reliable indicator of long-term magnesium status. | High levels mean potential kidney issues or excessive intake.
Low levels mean possible deficiency affecting muscle and nerve function. |
Reference ranges can vary. For the most accurate and up-to-date reference ranges for this lab test, visit Quest Diagnostics.
Magnesium, RBC FAQ
Is there Magnesium, RBC testing near me?
You can find nearby draw locations with our patient service center locator, which also offers mobile phlebotomy options.
What is the cost of the test?
The cost of the Magnesium, RBC test can be found at the top of the page. Pricing includes draw fees when visiting patient service centers.
How often should I retest?
Retesting frequency for the Magnesium, RBC test depends on individual health needs, but it is generally recommended every 6 to 12 months for those monitoring chronic conditions. Regular testing can help track changes in magnesium levels over time.
How accurate is the test?
The Magnesium, RBC test measures magnesium levels within red blood cells, providing a more precise assessment of magnesium status compared to serum tests. This method ensures a reliable evaluation of long-term magnesium levels. TrueHealthLabs.com partners only with CLIA-certified labs to ensure high-quality testing.
Medical Review Board
Reviewed by Jeff Donohue M.D. from Body Logic and Brady Hurst DC, CCCN. Written by True Health Lab’s team of editorial health contributors.
Disclaimer: This information is for educational purposes only and not intended as medical advice. Consult your healthcare provider for personalized guidance.
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