Commercial Mail-out Laboratory
Collect midmorning after patient has been sitting, standing or walking
for at least 2 hours and seated for 5-15 minutes.
|Red top tube 5 mL (Clot Activator)
Preferred Minimum: 1.0 mL serum from red top tube
Absolute Minimum: 0.5 mL serum from red top tube
Deliver to laboratory immediately after collection.
2-4 days upon receipt at reference laboratory
Age Posture Unspecified
0-6 days 5.0-102.0 ng/dL
1-3 weeks 6.0-179.0 ng/dL
1-11 months 7.0-99.0 ng/dL
1-2 years 7.0-93.0 ng/dL
3-10 years 4.0-44.0 ng/dL
11-14 years 4.0-31.0 ng/dL
15 years and older
Posture Unspecified: < 31.0 ng/dL
Supine: < 16.0 ng/dL
Upright: 4.0-31.0 ng/dL
Normal serum levels of aldosterone are dependent on the sodium intake
and whether the patient is upright or supine. High sodium intake will
tend to suppress serum aldosterone, whereas low sodium intake will
elevate serum aldosterone. The reference intervals for serum
aldosterone are based on normal sodium intake.
Patient Prep: If upright specimen is collected, patient should
be seated or standing for at least 2 hours.
Quantitative Chemiluminescent Immunoassay