Sample Type
Serum
Parameters
1
Report Time
Same day
Fasting
No fasting required.
The Magnesium, Serum test measures the concentration of magnesium in your blood. Magnesium is an essential mineral that supports hundreds of biochemical processes in the body, including muscle contraction, nerve function, heart rhythm, energy production, and bone health. This test is commonly recommended to evaluate magnesium deficiency or excess, monitor kidney function, investigate muscle weakness, cramps, irregular heartbeat, or seizures, and assess electrolyte balance. It is also useful for monitoring individuals receiving magnesium supplements or certain medications.