It is normally excreted in the urine to rid the body of nitrogen. Values that are high may indicate gout, arthritis or certain kidney problems. A low value is not clinically significant. Sodium is an ion that is important in the conduction of nerves, contraction of muscles, and functioning of cells. It is controlled primarily by the kidneys and adrenal glands.
Potassium is important for muscles and nerves to function properly.
It is controlled by the kidneys. This value is watched very closely if one is taking diuretics or cardiovascular medications. If the blood sample is not processed properly, high values may occur. Chloride , like sodium and potassium, is an ion that is important in the functioning of cells. It is primarily controlled by the kidneys and adrenal glands.