Aldosterone
Label Mnemonic: ALDS
Epic Lab Code: LAB552
Downtime Form: A-1a Miscellaneous Request
Commercial Mail-out Laboratory
5231 RCP
356-8593
Specimen(s):
Serum
Specimen Instructions:
Collect midmorning after patient has been sitting, standing or walking for at least 2 hours and seated for 5-15 minutes.
Collection Medium:
Red top tube 5 mL (Clot Activator)
Minimum:
Preferred Minimum: 1.0 mL serum from red top tube
Absolute Minimum: 0.5 mL serum from red top tube
Rejection Criteria:
EDTA plasma
Delivery Instructions:
Deliver to laboratory immediately after collection.
Turn Around Time:
2-4 days upon receipt at reference laboratory
Reference Range:
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
Interpretive Data:
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.
Comments:
Patient Prep: If upright specimen is collected, patient should be seated or standing for at least 2 hours.
Methodology:
Quantitative Chemiluminescent Immunoassay
CPT Code:
82088
 
See Additional Information:
Specimens Requiring Immediate Delivery