What is the normal range for aldosterone?
May 22, 2022
Source: Cainiu Health
Dr. Li Man
Introduction
Morning aldosterone levels: the normal reference range for upright position is typically 65–295 ng/L, and for supine position, 60–175 ng/L. Normal aldosterone values vary depending on the assay method used. It is essential to compare your test result with the reference range provided alongside the result to determine whether it is low or high. Physiologically elevated aldosterone may occur with low dietary sodium intake, whereas high sodium intake may lead to physiological suppression.
In daily life, many people seek to better understand their health status by verifying whether certain laboratory values fall within normal ranges—enabling them to take preventive or therapeutic measures as needed. So, what is the normal range for aldosterone?
What Is the Normal Range for Aldosterone?
The normal aldosterone level is influenced by body position, diet, and medications, and therefore varies depending on specific conditions. Under standard dietary conditions—after fasting for more than 10 hours—the morning aldosterone level measured in the upright (standing) position typically ranges from 65–295 ng/L, whereas the supine (lying-down) value generally falls between 60–175 ng/L. Importantly, reference ranges for aldosterone may differ across laboratories due to variations in assay methodology. Thus, it is essential to compare your test result with the reference interval provided alongside the report to determine whether the value is abnormally low or high. Physiologically, low dietary salt intake leads to increased aldosterone secretion, while high-salt diets cause a physiological decrease.
Aldosterone is a hormone critical for regulating blood volume. It maintains fluid and electrolyte balance primarily by modulating sodium reabsorption in the kidneys. Aldosterone secretion is mainly regulated by the renin-angiotensin system: a reduction in extracellular fluid volume stimulates juxtaglomerular cells in the kidney to release renin, which converts angiotensinogen into angiotensin I; this is subsequently converted to angiotensin II, which in turn stimulates aldosterone synthesis and secretion from the zona glomerulosa of the adrenal cortex—thereby enhancing sodium and water reabsorption. Conversely, an increase in extracellular fluid volume triggers the opposite regulatory mechanism, resulting in decreased aldosterone secretion.
In daily life, avoid spicy and irritating foods, drink plenty of water to support metabolic function, and engage in appropriate outdoor physical activity to strengthen immunity. We hope this information is helpful to you!
