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Leptin
Test CodeLEPTIN
Alias/See Also
Leptin
Quest Code
90367
Quest Code
90367
CPT Codes
82397
Preferred Specimen
1 mL serum collected in a serum separator tube (SST)
Minimum Volume
0.2 mL
Other Acceptable Specimens
1 mL serum collected in a no additive (red-top) tube, transferred to a plastic screw-cap vial
Transport Temperature
Refrigerated
Specimen Stability
Room temperature: 8 hours
Refrigerated: 14 days
Frozen: 35 days
Refrigerated: 14 days
Frozen: 35 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Moderate hemolysis
Icteric specimens
Icteric specimens
Methodology
Electrochemiluminescence
Setup Schedule
Monday, Thursday a.m.
Report Available
3 days
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.
Performing Laboratory
Quest Diagnostics Nichols Institute
San Juan Capistrano, CA