Labels:text | screenshot | black | black and white | font | document OCR: ately 200ug The normal production rate is approxin um intake daily; this is critically dependent on sod d being stimulated by sodium depletion a fall in the suppressed by salt loading. Plasma level en normal range of 140-420pmol/l (50-150ng/1) wh ho1/1 subjects are recumbent and of 420-840pr addition, (150-300ng/1) when standing upright. In e secretion. there is a circadian rhythm of aldostero of day all Thus, posture, sodium intake, and time taking have to be taken into consideration whe blood samples for aldosterone assay. See also: retion . Circadian Variation of Aldosterone Se