Multiple Time-Point Aldosterone Test
5 days
Chemiluminescent Immunoassay (CLIA)
Accredited NRL Laboratory
Wednesday and Friday
Aldosterone measured in three timed samples (e.g., morning supine, after upright posture, and possibly after saline or another stimulus). Multiple measurements assess aldosterone dynamics and can improve diagnostic auracy for hyperaldosteronism by capturing how aldosterone responds to posture or volume changes (e.g., lack of normal suppression or stimulation in primary aldosteronism).
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 |