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Lab Dept:
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Chemistry
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Test Name:
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ALDOSTERONE
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General Information
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Lab Order Codes:
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BALD
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Synonyms:
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Aldosterone, Blood
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CPT Codes:
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82088 - Aldosterone
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Test Includes:
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Aldosterone level reported in ng/dL.
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Logistics
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Test Indications:
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The principal use for aldosterone measurements is in the diagnosis of primary hyperaldosteronism, which is most commonly caused by a specific type of adrenal adenoma.
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Lab Testing Sections:
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Chemistry - Sendouts
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Referred to:
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Esoterix Inc. (Test# 500014)
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Phone Numbers:
Minneapolis:
Saint Paul:
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612-813-6280
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651-220-6550
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Test Availability:
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Daily, 24 hours
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Turnaround Time:
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3 - 6 days, test is performed Monday, Tuesday and Thursday
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Special Instructions:
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A random measurement of aldosterone is of no diagnostic utility unless plasma renin activity is determined simultaneously.
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Specimen
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Specimen Type:
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Blood
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Container:
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Red top (plain, no gel) tube
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Draw Volume:
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3 mL (Minimum:1.5 mL, does not allow for repeat analysis) blood
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Processed Volume:
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1 mL (Minimum: 0.5 mL) serum
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Collection:
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Routine venipuncture
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Special Processing:
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Lab Staff: Centrifuge specimen within 1 hour of collection, remove serum aliquot. Store and ship frozen in plastic vial. Forward promptly.
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Patient Preparation:
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None
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Sample Rejection:
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Mislabeled or unlabeled specimens
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Interpretive
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Reference Range
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Premature Infants:
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26 - 28 weeks, day 4:
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5 - 635 ng/dL
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31 - 35 weeks, day 4:
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19 - 141 ng/dL
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Full-Term Infants:
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3 days:
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7 - 184 ng/dL
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1 week:
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5 - 175 ng/dL
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1 - 11 months:
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5 - 90 ng/dL
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Children:
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12 - 23 months:
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7 - 54 ng/dL
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24 months - 9 years:
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5 - 80 ng/dL
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10 - 14 years:
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4 - 48 ng/dL
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Adults:
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Adults:
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<31 ng/dL
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Critical Values:
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N/A
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Limitations:
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N/A
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Methodology:
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HPLC, Tandem Mass Spectrometry
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Contraindications:
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Hypokalemia caused by thiazide diuretics can resemble primary aldosteronism.
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References:
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Esoterix Laboratory Services www.esoterix.com July 2012
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Updates:
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12/14/2010: Reference range update. Suppine references removed. Method change, previously listed as RIA.
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