Investigate primary and secondary aldosteronism. Distinguish between bilateral idiopathic hyperaldosteronism (IHA) and aldosterone-producing adenomas (APA).
Quantitative Chemiluminescent Immunoassay
Within 24 hours
Adrenal venous sampling procedure is required. Serum Separator Tube (SST) or Plain Red.
Separate from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL)
After separation from cells: Ambient: 8 hours; Refrigerated: 5 days; Frozen: 1 month
Refer to the Additional Technical Information link for information on Endocrine Society recommendations regarding patient preparation, specimen collection, medications for hypertension control during confirmatory testing for primary aldosteronism, and factors that may lead to false-positive or false-negative aldosterone-renin ratio (ARR) results.
|Component Test Code*||Component Chart Name||LOINC|
|3000488||Aldosterone_Left Adrenal Vein||92897-8|