Magnesium, RBC — lab reference
In the reference guideNo universal interval across methods. Record exact performing-lab method and range.
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What’s searchable?No universal interval across methods. Record exact performing-lab method and range.
Altitude, smoking, hydration, androgen therapy, and pregnancy may shift values.
Normal serum magnesium does not exclude tissue depletion.
Method-specific. Any clinic target should identify the exact assay.
Persistent microscopic hematuria requires risk-based evaluation.
Hydration and altitude are major modifiers. Ask your clinician to review alongside hemoglobin and RBC indices.
Normal <5.7; prediabetes 5.7-6.4; diabetes ≥6.5. Altered RBC turnover can make A1C unreliable.
Ask your clinician to read this result with calcium, phosphorus, magnesium, vitamin D, and kidney function.
Ask your clinician to specify whole blood, RBC, plasma, or intracellular method. Preanalytic handling is critical.
RBC, plasma, and cellular assays are not interchangeable.
Your lab may use its own range. Symptoms, medicines, and the types of white blood cells also matter.
Ask your clinician to consider altitude and iron/B12/folate status. Pregnancy requires trimester-specific ranges.
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