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.
Standard metabolic profiles test for potassium, sodium and chloride but not. magnesium. When the doctor does order a magnesium blood test, it is a âserumâ magnesium, that is, it measures the amount of magnesium in the liquid of the blood, only 0.3% of the magnesium in your. body.