Serum Magnesium Test
Also called: Mg Test, Mag Test, Magnesium blood test
Commonly prescribed for: Nausea, weakness, twitching, cramping, irregular heartbeat
Home Collection
Report Delivery: Sample before 12 PM → by 8:30 PM today Sample after 12 PM → by 1 PM tomorrow
Age Group
All
Sample Required
Blood
Test For
Men, Women
Contains
1 Tests
Tests available at
Home Collection
Preparations
No special preparation
Expert Analysis
Case Studies
16 Jan, 2025
12 Minutes
Know More About This TestSerum Magnesium measures magnesium levels in the blood, an essential mineral involved in muscle contraction, nerve function, heart rhythm, and bone health. Magnesium also plays a role in glucose metabolism and blood pressure regulation.
Deficiency is common but often overlooked, especially in people with gastrointestinal disorders or long-term medication use.
Why Is This Test Recommended?Evaluate muscle cramps or weakness
Investigate abnormal heart rhythms
Assess electrolyte imbalance
Monitor chronic kidney disease
Evaluate malnutrition or alcoholism
Understanding MagnesiumLow magnesium can worsen calcium and potassium imbalance. Severe deficiency may cause arrhythmias or seizures.
Symptoms Requiring TestingMuscle twitching or cramps
Fatigue
Irregular heartbeat
Neurological symptoms
Preparation
No fasting required
Inform doctor about supplements
Results Interpretation
Normal: ~1.7–2.4 mg/dL
Low: Malabsorption, diuretics
High: Kidney failure
FAQs
Can stress lower magnesium? – Indirectly, yes.
Is magnesium checked routinely? – Often overlooked.
Can supplements affect results? – Yes.
Is fasting needed? – No.
Does kidney disease raise magnesium? – Yes.
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Tapadia Diagnostic
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