Leptin

Test Code

LEPTIN

Alias/See Also

Leptin

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

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Moderate hemolysis
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

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.