Aldosterone & Renin, Direct with Ratio
2002582
 
Ordering Recommendation
Mnemonic
A/DR
Methodology
Quantitative Radioimmunoassay/Quantitative Immunoradiometry
Performed
Mon
Reported
1-8 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Supine: 1. Both specimens should be obtained between 8 a.m. and 10 a.m. (after at least two hours in supine position); 2. Normal sodium diet (100-200 mEq/day) for at least three days; 3. Receiving no medications known to affect renin-aldosterone system.
Upright:
1. Both specimens should be obtained before noon (after at least two hours in upright position; seated or standing). 2. Normal sodium diet (100-200 mEq/day) for at least three days. 3. Receiving no medications known to affect renin-aldosterone system.
Contact Medical Director if more information is needed.  
Collect
Serum separator tube or green (sodium or lithium heparin) AND lavender (EDTA) or pink (K2EDTA). Do not collect in refrigerated tubes.  
Specimen Preparation
Separate from cells ASAP. Transfer 1 mL serum or heparinized plasma AND 2 mL EDTA plasma to individual ARUP Standard Transport Tubes and freeze immediately. (Min: 0.5 mL serum or heparinized plasma AND 1 mL EDTA plasma)  
Storage/Transport Temperature
CRITICAL FROZEN. Separate specimens must be submitted when additional tests are ordered.  
Unacceptable Conditions
Refrigerated plasma. Hemolyzed specimens.  
Remarks
 
Stability
After separation from cells: Ambient: 4 hours; Refrigerated: Unacceptable; Frozen: 1 month  
Reference Interval
Available Separately Components Reference Interval
0070015Aldosterone, Serum Effective May 16, 2011
Age Posture Unspecified Supine Upright
0-​6 days 5.0-​102.0 ng/dL
1-​3 weeks 6.0-​179.0 ng/dL
1-​11 months 7.0-​99.0 ng/dL
1-​2 years 7.0-​93.0 ng/dL
3-​10 years 4.0-​44.0 ng/dL
11-​14 years 4.0-​31.0 ng/dL
15 years and older Less than or equal to 31.0 ng/dL Less than or equal to 16.0 ng/dL 4.0-​31.0 ng/dL
2001575Renin, Direct 2.5-​45.7 pg/mL
Aldosterone/Direct Renin Calculation 0.1-​3.7

An Aldosterone/Direct Renin Ratio of greater than 3.7 is suggestive of hyperaldosteronism.
Interpretive Data
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.
Note
Do not use this test for patients treated with Cathepsin B.
CPT Code(s)
82088; 84244
Components
Component Test Code*Component Chart Name
0070015Aldosterone
2001576Direct Renin
2002583Aldosterone/Direct Renin Calculation
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, contact interface support at interface.support@aruplab.com.
Cross References
  • Aldosterone and Direct renin
  • aldosterone serum
  • aldosterone/direct renin calculation
  • Aldosterone/Renin Ratio
  • ARR
  • ARR-D
  • DRA
  • Renin direct