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Test Name: ALDOSTERONE/RENIN ACTIVITY RATIO       Test #0

Order Mnemonic:

Ald/Ren Act Ratio

Dept Name:

SEND OUTS

Reference Lab:

ARUP

Ref. Lab Test No.:

0070073

Refer to:

ARUP Labs

Collection Requirements:

MUST COLLECT RED/YELLOW AND LAVENDER TOP TUBES

Primary Collection Container

Alternate Collection Container

Qty

Tube

1

RED/YELLOW GEL (SST)

1

LAVENDER 4ML (K3EDTA)

Qty

Tube

1

RED/BLACK (NO GEL)

1

LAVENDER 4ML (K3EDTA)

4

YELLOW MICROTAINER 1.0 ML

4

LAVENDER MICROTAINER 0.5 ML

Transport:

Serum and plasma, frozen

Processing:

CRITICAL FROZEN. Separate specimens must be submitted when additional tests are ordered. Do not refrigerate. Do not collect in refrigerated tubes. Separate plasma from cells ASAP and freeze.


Centrifuge both tubes and pour off into two transport tubes.

Stability After
Processing:

Ambient: 4 hours
Refrigerated: Unacceptable
Frozen: 1 month

Minimum Testing
Volume:

0.6 mL plasma and 0.6 mL serum

Unacceptable Conditions:

Refrigerated plasma.

Reference Range:

 
Test Number
Components
Reference Interval
0070015Aldosterone, Serum
 
 
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
31.0 ng/dL or less
16.0 ng/dL or less
4.0-31.0 ng/dL
0070105Renin Activity
Adult, normal sodium diet:
  Supine: 0.2-1.6 ng/mL/hr
  Upright: 0.5-4.0 ng/mL/hr
Newborn (1-7 days): 2.0-35.0 ng/mL/hr
Cord blood: 4.0-32.0 ng/mL/hr
Children, normal sodium diet, supine:
  1-12 months: 2.4-37.0 ng/mL/hr
  13 months-3 years: 1.7-11.2 ng/mL/hr
  4-5 years: 1.0-6.5 ng/mL/hr
  6-10 years: 0.5-5.9 ng/mL/hr
  11-15 years: 0.5-3.3 ng/mL/hr
 Aldosterone/Renin Activity Calculation
< 25
An Aldosterone/Renin Activity Ratio of greater than 25 is suggestive of hyperaldosteronism.
 

Methodology:

Radioimmunoassay

CPT Codes:

82088; 84244

Performed:

Sun-Sat

Reported:

2-5 days

NCD/LCD ABN Required:

No

 

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