Aldosterone

Aldosterone is a steroid hormone produced by the outer section of the adrenal cortex in the adrenal gland.It plays a central role in the regulation of blood pressure mainly by acting on the distal tubules and collecting ducts of the nephron, increasing reabsorption of ions and water in the kidney, to cause the conservation of sodium, secretion of potassium, increase in water retention, and increase in blood pressure and blood volume.

Specimen:Serum Frozen (Rest for 30 minutes-Laying)

Reference Values: 

Standing: 4-31 ng/dl
Recumbent Adults: 1-16 ng/dl
Recumbent 13-16 Years: 1-18 ng/dl 
Recumbent 9-12 Years: 3-28 ng/dl
Recumbent 5-8 Years: 4-76 ng/dl
Recumbent 1-4 Years: 5-60 ng/dl
Recumbent <1 Year: 5-132 ng/dl          

Method:RIA

Loinc: 1763-2