aldosterone
enUKal·dos·ter·one
A0187100 (ăl-dŏs′tə-rōn′)aldosterone
(ælˈdɒstəˌrəʊn)al•do•ste•rone
(ˌæl doʊ stɪˈroʊn, ˈæl doʊ stɪˌroʊn, ælˈdɒs təˌroʊn)n.
aldosterone
Noun | 1. | ![]() |
单词 | aldosterone | |||
释义 | aldosteroneenUKal·dos·ter·oneA0187100 (ăl-dŏs′tə-rōn′)aldosterone(ælˈdɒstəˌrəʊn)al•do•ste•rone(ˌæl doʊ stɪˈroʊn, ˈæl doʊ stɪˌroʊn, ælˈdɒs təˌroʊn)n. aldosterone
aldosteroneenUKaldosterone[al-dos´ter-ōn, al´do-ster-ōn″]al·dos·ter·one(al-dos'tĕr-ōn), Avoid the mispronunciation aldoster'one.aldosterone(ăl-dŏs′tə-rōn′)aldosteroneAn adrenocortical mineralocorticoid that controls electrolyte and water homeostasis by regulating reabsorption of Na+ and Cl– in exchange for K+ and H+, and which maintains blood pressure and blood volume. Aldosterone secretion is controlled by the RAA system and by concentrations of K+ in the circulation, which if increased evokes secretion of aldosterone. Reduced Na+ evokes renin release, which stimulates aldosterone secretion; aldosterone may be measured when evaluating hypertension.Increased in Adrenocortical adenoma or carcinoma, bilateral adrenal hyperplasia, renovascular hypertension, liver disease, congestive heart failure, cirrhosis, nephrotic syndrome, pregnancy (3rd trimester). Decreased in Primary hypoaldosteronism, salt-losing syndrome, eclampsia/toxemia of pregnancy, Addison’s disease (chronic adrenal insufficiency). Ref range • Serum, ≤ 20 mg/dL. • Urine, ≤ 20mg/24 hours. aldosteroneEndocrinology An adrenocortical mineralocorticoid hormone that controls the body's electrolyte and water homeostasis by regulating reabsorption of Na+ and Cl– in exchange for K+ and H+ ions, and maintaining BP and blood volume; aldosterone secretion is controlled by the RAA system and by concentrations of K+ in the circulation, which if ↑, evokes secretion of aldosterone; ↓ Na+ evokes renin release, which stimulates aldosterone secretion; aldosterone may be measured when evaluating HTN; aldosterone is ↑ in adrenocortical adenoma or CA, bilateral adrenal hyperplasia, renovascular HTN, liver disease, CHF, cirrhosis, nephrotic syndrome, pregnancy–3rd trimester; it is ↓ in 1º hypoaldosteronism, salt-losing syndrome, toxemia of pregnancy, Addison's disease Ref range Serum, ≤ 20 mg/dL; ≤ 20mg/24hrs, urine. See Hypertension, Pseudoaldosterone, Timed collections.al·dos·ter·one(al-dos'tĕr-ōn)aldosteroneOne of the STEROID hormones produced by the outer part of the adrenal gland. Aldosterone is concerned with the control of salt and water loss in the urine.aldosteronea hormone of the cortex of the ADRENAL GLAND. It is responsible for the relative concentration of sodium and potassium ions in the body. It promotes the reabsorption of sodium ions from the ascending limb of the LOOP OF HENLE in the kidney, with the elimination of potassium ions, and increases the uptake of sodium ions by the alimentary canal. The concentration of sodium ions in the blood thus rises and potassium ions fall, making possible the ionic regulation of body fluids (see SODIUM PUMP).Aldosteroneal·dos·ter·one(al-dos'tĕr-ōn) Avoid the mispronunciation aldoster'one.aldosteroneenUK
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