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Hypoaldosteronism causes low sodium (hyponatremia), high potassium (hyperkalemia), and metabolic acidosis, a condition in which the body produces excess acid.These conditions are responsible for the symptoms of hypoaldosteronism, which include muscle weakness, nausea, palpitations, irregular heartbeat, and abnormal blood pressure.
Adrenal insufficiency is a condition in which the adrenal glands do not produce adequate amounts of steroid hormones.The adrenal glands—also referred to as the adrenal cortex—normally secrete glucocorticoids (primarily cortisol), mineralocorticoids (primarily aldosterone), and androgens.
Aldosterone release causes sodium and water retention, which causes increased blood volume, and a subsequent increase in blood pressure, which is sensed by the baroreceptors. [39] To maintain normal homeostasis these receptors also detect low blood pressure or low blood volume, causing aldosterone to be released.
Low blood sodium, due to loss of production of the hormone aldosterone, to the kidney's inability to excrete free water in the absence of sufficient cortisol, and also the effect of corticotropin-releasing hormone to stimulate secretion of ADH. High blood potassium, due to loss of production of the hormone aldosterone.
Liddle's syndrome, also called Liddle syndrome, [1] is a genetic disorder inherited in an autosomal dominant manner that is characterized by early, and frequently severe, high blood pressure associated with low plasma renin activity, metabolic alkalosis, low blood potassium, and normal to low levels of aldosterone. [1]
The low-renin hypertension is often accompanied by hypokalemia due to urinary potassium wasting and metabolic alkalosis. These features of mineralocorticoid excess are the major clinical clues distinguishing the more complete 17α-hydroxylase deficiency from the 17,20-lyase deficiency, which only affects the sex hormones.
Conn's Syndrome, also known as primary aldosteronism, is a condition that causes high blood pressure due to excessive production of the hormone aldosterone by the adrenal glands.
This factoring indicates secondary hypoaldosteronism (sodium low, potassium and renin enzyme will be low). Usually doubling to quadrupling from a low base aldosterone value is what is seen in secondary adrenal insufficiency. Decoupling of aldosterone in the ACTH stimulation test is possible (i.e. 2 ng/dl stimming to 20). [21]