Signs and symptoms of peripheral neuropathy might include: 1  Gradual onset of numbness, prickling or tingling in your feet or hands, which can spread upward into your legs and arms. 2  Sharp, jabbing, throbbing, freezing or burning pain.  Extreme sensitivity to touch.
Clinical Significance. Magnesium measurements are used in the diagnosis and treatment of hypomagnesemia (abnormally low plasma levels of magnesium) and hypermagnesemia (abnormally high plasma levels of magnesium). Magnesium is decreased in chronic nephritis, acute pancreatitis, and alcoholic cirrhosis.
Since magnesium is an electrolyte, a magnesium test may be ordered along with other electrolytes such as sodium, potassium, chloride, bicarbonate (or total CO2), calcium, and phosphorus to evaluate a person's electrolyte balance. If magnesium is low, it is not unusual for potassium also to be low.