Test Overview
Test Methodology

Enzyme-linked immunoassay (ELISA)

Reference Range *

Adult (BMI=22): Male 0.7 - 5.3 ng/mL; Female 3.3 - 18.3 ng/mL.

Test Details
Days Set Up
Tuesday, Thursday
Analytic Time

4 - 16 days

Soft Order Code
FLEP
MiChart Code
Leptin Level (Sendout)
Laboratory
Sendout
Reference Laboratory
Mayo FLEP (91339) (Esoterix Endocrinology 500237)
Section
Special Testing
Specimen Requirements
Collection

A fasting specimen is recommended. Collect specimen in a red top or SST tube. Centrifuge, aliquot serum into a screw capped plastic vial and freeze.

Special Handling

Must arrive in lab or aliquot and freeze within 1 hour.

Alternate Specimen
Lavender top (EDTA) is acceptable.
Fasting Specimen
Fasting specimen recommended.
Yellow Top Tube
Normal Volume
1 mL serum
Minimum Volume
0.5 mL serum
Storage Temperature
Frozen (preferred); Room Temperature or Refrigerated up to 48 hours.
Additional Information

Test sent to Mayo Medical Laboratories; performed by Esoterix Endocrinology.

Billing
CPT Code
83520
Fee Code
AA082
LOINC
21365-2
NY State Approved
No