- ADRR
Aldosterone/Renin Activity Ratio
Specimen:
Test Code
ADRR
Specimen Name
Aldosterone/Renin Activity Ratio
Collect
1-SST , 1-EDTA
Submit
1 mL serum and 2 mL EDTA Plasma Frozen
Special Handling
Separate from cells ASAP or within 2 hours of collection. Serum: Transfer 1 mL serum to a standard transport tube. (Min: 0.5 mL) Plasma: Transfer 2 mL EDTA plasma to a standard transport tube and freeze immediately. (Min: 1.2 mL) Storage at refrigerated temperatures may cause falsely elevated results. Do not collect in refrigerated tubes. Process blood at room temperature and centrifuge tubes in a nonrefrigerated centrifuge.
Rejection Criteria
Plasma collected in citrate, heparin, or oxalate. Hemolyzed specimens.
Stability
Serum: Ambient 8 hours; Refrigerated 5 days; Frozen 1 month; Plasma: Ambient 6 hours; Refrigerated Unacceptable; Frozen 1 month
Methodology
Quantitative Chemiluminescent Immunoassay (CLIA) / Quantitative Enzyme-Linked Immunosorbent Assay (ELISA)
Performed
Sunday - Saturday
Reported
2-6 days
CPT Codes
- 82088
- 84244
Components
—
Additional Information
Blood should be obtained in seated position in the morning without venous stasis (release tourniquet after venipuncture and wait at least 5 seconds before withdrawing blood). If the patient is supine, ensure that the patient is in this position for at least 30 minutes prior to collection.
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Common Lab Definitions
- Serum
- Plasma
- STT