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Specimen Collection Manual and Test Catalog

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LEPTIN

Geisinger Epic Procedure Code:  LAB2602    Geisinger Epic ID:  41805

SPECIMEN COLLECTION
Specimen type: 

Serum


Preferred collection container: 
Specimen required: 

1 mL serum; minimum 0.2 mL



SPECIMEN PROCESSING
Processing instructions: 

Centrifuge and transfer to plastic screw-cap vials.


Transport temperature: 

Refrigerated.


Specimen stability: 

Refrigerated: 14 days. Frozen: 35 days.


Rejection criteria: 

Moderate hemolysis, gross hemolysis, hypericteric specimens



TEST DETAILS
Reference interval: 

Pediatric Male and Female
 

5-9.9 Years0.6-16.8 ng/mL
10-13.9 Years1.4-16.5 ng/mL
14-17.9 Years0.6-24.9 ng/mL


Adult Lean Subjects (18-71 Years) with BMI range of 18-25
 

Male0.3-13.4 ng/mL
Female4.7-23.7 ng/mL


Adult Subjects (19-60 Years) with BMI range of 25-30
 

Male1.8-19.9 ng/mL
Female8.0-38.9 ng/mL

CPT code(s):  83520
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.

Methodology: 
Electrochemiluminescence
Synonyms: 

Quest test code 90367, LEPTIN


Clinical significance: 

Leptin is an adipocyte-derived hormone that is essential for normal body weight regulation. Leptin production is under neuroendocrine control so that serum concentrations vary directly with the amount of triglycerides stored in adipose tissue depots.


Review Date:  12/04/2024

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