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 is a hormone produced by the adrenal glands located just above each kidney. Aldosterone helps to control the amount of fluid in the body by affecting how much salt and water the kidney retains or excretes.The adrenal glands produce aldosterone in response to another hormone called renin.Renin is produced by specialised cells in the kidney that detect when the body is dehydrated; renin released by the kidney signals the adrenal glands to release aldosterone.ldosterone helps to control the amount of fluid in the body by affecting how much salt and water the kidney retains or excretes. The adrenal glands produce aldosterone in response to another hormone called renin.