Specimen:
Collect
- One Lavender (EDTA)
- One SST
Also Acceptable:
- One Pink Top (EDTA)
- One Red Top
Submit
- 1 mL (Min:0.5 mL) Serum . Submit Frozen. Submit in a Standard Transport Tube.
- 2 mL (Min:1.5 mL) Plasma . Submit Frozen. Submit in a Standard Transport Tube.
Special Handling
- Separate aliquot required for each frozen test ordered
- 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 min prior to collection.
Specimen Preparation: Separate from cells ASAP or within 2 hours of collection.
Serum: Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL)
AND
Plasma: Transfer 2 mL EDTA plasma to an ARUP 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 nonrefrigerated centrifuge.
Storage/Transport Temperature: Both specimens should be submitted together for testing.
Serum: Frozen Only
Plasma: CRITICAL FROZEN. Separate specimens must be submitted when additional tests are ordered.
Stability (collection to initiation of testing): Serum: Ambient: 8 hours; Refrigerated: 5 days; Frozen: 1 month
Plasma: Ambient: 6 hours; Refrigerated: Unacceptable; Frozen: 1 month
Rejection Criteria
- Hemolyzed specimens
- Specimen not submitted frozen
- Plasma collected in citrate, heparin, or oxalate.
Stability
Ambient: 6 Hour(s); Refrigerated: Unacceptable; Frozen: 1 Month(s); Incubated: Unacceptable
Methodology
- Qualitative Enzyme-Linked Immunosorbent Assay
- Quantitative Chemiluminescent Immunoassay
Performed
Sun-Sat
Reported
3-6 Day(s)
CPT Codes
- 82088
- 84244
Interpretive Data
Please see report for interpretive data.
Components
- 91012 - ALDOSTERONE
- 91196 - RENIN ACTIVITY
- 93584 - RATIO
Last Updated: April 23, 2026 @ 9:13 am
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