Their hormonal secretions affect organs and tissues throughout the body.1,2The adrenal cortex produces and secretes hormones known as adrenal steroids or corticosteroids. These are classified as mineralocorticoids, which help control body fluid and electrolyte levels, and glucocorticoids, which are involved in many essential life processes. The adrenal medulla secretes small amounts of catecholamines as needed to help with stress response requirements.1,2Aldosterone, the principal mineralocorticoid, maintains extracellular fluid volume as part of the renin-angiotensin-aldosterone system. Secreted in response to decreased extracellular volume, aldosterone stimulates the kidneys to reabsorb sodium and water and excrete potassium in an effort to increase