5 days
Chemiluminescent Immunoassay (CLIA)
Accredited NRL Laboratory
Wednesday and Friday
Involves measuring aldosterone in two blood samples taken under different conditions (often supine vs upright). This postural stimulation test helps diagnose primary aldosteronism: normally aldosterone rises upon standing, in primary aldosteronism, an inappropriately high supine aldosterone or lack of significant rise upright can be observed
Serum
0.5 mL per tube
Red top tube or Gel barrier tube
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.
| Temperature | Period |
|---|---|
| Refrigerated | 5 days |
| Frozen | 28 days |