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Test Code LAB1234722 Aldosterone and Renin Direct, With Ratio

Important Note

ARUP's test code: 3005949

Performing Laboratory

ARUP Laboratories

Specimen Required

Collect Yellow (Gold) top tube (SST) AND Lavender Top Tube (EDTA) from a supine or upright patient. Do not collect in refrigerated tubes nor store tubes on ice. Process blood at room temperature and centrifuge tubes in a nonrefrigerated centrifuge.

 

Separate from cells ASAP or within 2 hours of collection.
Serum: Transfer 1 mL serum to an ARUP standard transport tube (Min: 0.5mL)
AND
Plasma: Transfer 2 mL EDTA plasma to an ARUP standard transport tube and freeze immediately. (Min: 1 mL)

Specimen Stability Information

Transport: Both specimens should be collected and submitted together for testing.
Serum: Frozen. Also acceptable: Refrigerated.
Plasma: Frozen

 

Stability:

Serum: Ambient: 8 hours; Refrigerated: 5 days; Frozen: 1 month
Plasma: Ambient: 8 hours; Refrigerated: Unacceptable; Frozen: 1 month

 

Reject Due To

Refrigerated plasma or plasma collected in citrate, heparin, or oxalate. Grossly hemolyzed specimens.

Day(s) Performed

Performed: Mon, Wed, Fri

 

Reported: 1-5 days

Method Name

Qualitative Chemiluminescent Immunoassay (CLIA)

CPT Code Information

Refer to Aldosterone (0070015) and Renin, Direct (2001575)

Interpretation

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.

LOINC Code Information

Component Test Code* Component Chart Name LOINC
2002583 Aldosterone/Direct Renin Calculation 30894-0

* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds