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.
The fecal immunochemical test (FIT), also called an immunochemical fecal occult blood test (iFOBT), tests for occult (hidden) blood in the stool in a different way than a guaiac-based test. This test reacts to part of the human hemoglobin protein, which is found in red blood cells.