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.
Magnesium levels are typically checked when someone has a disorder which affects the kidneys. It may also be ordered to monitor people who are taking Magnesium supplements. Turnaround time for the Magnesium RBC test is typically 1-3 business days. Note: Result turn around times are an estimate and are not guaranteed.