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Magnesium, Red Blood Cell (RBC) details

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Feature Labcorp Quest Diagnostics
Price $21.99 $15.49
Results in ~4 business days ~5 business days
Sample type Blood Red Blood Cells Blood Red Blood Cells
Require fasting No No

About the test

Magnesium, RBC (Red Blood Cell) measures the magnesium level inside red blood cells, providing a more accurate reflection of intracellular magnesium status than serum levels. Magnesium is essential for muscle function, nerve signaling, and energy production.

Included biomarkers & Reference ranges

Biomarker Reference range
Magnesium RBC Measures magnesium stored inside red blood cells, considered a more accurate reflection of your body's magnesium status than a standard serum test. โ€”

Reference ranges vary by lab, age, and sex (M/F). Your report shows your exact range. Click any biomarker to see its optimal range and what your results mean.

Preparation

Labcorp lists no special preparation for this test.

  • Patient should refrain from taking vitamins, or mineral herbal supplements for at least one week before sample collection.

How it works

  1. 1. Order online No referral or insurance
  2. 2. Get a requisition By email, instantly
  3. 3. Visit a draw center Bring a matching photo ID
  4. 4. Get results Securely by email
  1. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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