Manitoba Nephrology Nurse Practice Test

Where is aldosterone produced?

1. Liver

2. Hypothalamus

3. Adrenal cortex

4. Kidneys

The correct answer is: Adrenal cortex

Aldosterone is produced in the adrenal cortex, which is the outer layer of the adrenal glands located on top of each kidney. This steroid hormone plays a vital role in the regulation of blood pressure, electrolyte balance, and fluid homeostasis in the body. Specifically, aldosterone promotes the reabsorption of sodium and the excretion of potassium in the kidneys, which helps to regulate blood volume and, consequently, blood pressure. Understanding this process is crucial for nephrology nursing, as aldosterone’s function directly impacts kidney function and systemic circulation. The production of aldosterone is stimulated by factors such as the renin-angiotensin-aldosterone system (RAAS) and is influenced by levels of sodium and potassium in the blood, as well as blood pressure. Therefore, knowing its source in the adrenal cortex is essential for comprehending how electrolyte imbalances and blood pressure disorders may be treated in patients with renal issues.