blood hormone analysis blood aldosterone analysis 2012-10-04T03:10:38Z A method which measures aldosterone in the blood. Aldosterone is a mineralocorticoid steroid hormone produced by the adrenal cortex with action in the renal tubule to retain sodium, conserve water by reabsorption, and increase urinary excretion of potassium. JSmith MMO:0000312 Only for use when the specific method of measuring the aldosterone, such as ELISA, EIA or RIA is not given. measurement_method_ontology