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Biochemistry
Magnesium
Magnesium is an essential electrolyte involved in muscle, nerve, and enzyme function. Abnormal levels affect cardiac rhythm and neuromuscular activity.
Why a doctor may order this
To investigate neuromuscular symptoms, arrhythmias, or electrolyte imbalance.
Why you may need this
If you have muscle cramps, heart rhythm issues, or are on diuretics — magnesium.
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Frequently Asked Questions
To investigate neuromuscular symptoms, arrhythmias, or electrolyte imbalance.
If you have muscle cramps, heart rhythm issues, or are on diuretics — magnesium.
Open the Elab mobile app, choose your test, select a clinic, and complete payment securely inside the app.
Some blood tests require fasting. The Elab app and clinic team will show the relevant preparation instructions before sample collection.
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