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Aldosterone

Aldosterone

Epic Mnemonic
Sunquest Mnemonic

LAB557
BALD

Category

Sendouts

Methodology

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

Test Performance Schedule

Monday through Friday

Result Availability

1 – 4 days

Specimen Required

Container

Lavender top (EDTA) tube

Volume

Pref. Vol.: 1.2 mL plasma
Min. Vol.: 0.6 mL plasma

Collection Instructions

• Routine venipuncture
•Immediately after collection, gently invert tube 5-10 times
• Centrifuge within 2 hours of collection
• Refrigerate

Transportation Instructions

Refrigerated

Stability

After separation from cells:
• Room temperature: 4 days
• Refrigerated (preferred): 28 days
• Frozen: 30 days

Remarks

Patient Preparation:
• 8 a.m. draw time (after the patient is active for 2 hours) is recommended; preferably no later than 10 a.m.
• Note on requisition/tube if patient was collected in supine or upright position

CPT Codes

82088

Effective/Revised

8/15/2019

Clinical Significance

Aldosterone and renin tests are used to evaluate whether the adrenal glands are producing appropriate amounts of aldosterone and to distinguish between the potential causes of excess or deficiency. Aldosterone may be measured in the blood or in a 24-hour urine sample, which measures the amount of aldosterone removed in the urine in a day. Renin is always measured in blood.

 

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