home / medterms medical dictionary a-z list / cdc definition Medical Definition of CDC CDC: The Centers for Disease Control and Prevention, the US agency charged with tracking and investigating public health trends. A part of the US Public Health Services (PHS) under the Department of Health and Human Services (HHS), the CDC is based in Atlanta, Georgia. It publishes key health information, including weekly data on all deaths and diseases reported in the US and travelers' health advisories.
An aldosterone test measures the level of aldosterone (a hormone made by the adrenal glands), in the blood. Aldosterone helps regulate sodium and potassium levels in the body. This helps control blood pressure and the balance of fluids and electrolytes in the blood. The kidney hormone renin normally stimulates the adrenal glands to release aldosterone.
Aldosterone. Aldosterone is a key steroid hormone critical for maintaining salt and water balance. It regulates the concentration of minerals, like sodium and potassium, in the fluid outside your cells.he hormones that regulate fluid balance are tightly controlled through a region of your brain called the hypothalamus. It's situated at the base of the brain and acts as the control center for various hormones that regulate a wide variety of physiological processes, including salt and water balance.