Test Overview
Test Methodology

Enzyme-linked immunosorbent assay (ELISA)

Reference Range *

Units: ng/mL
Adults (BMI=22)
Males: 0.7-5.3; Females: 3.3-18.3
Contact laboratory for other BMI reference ranges.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Monday, Wednesday, Saturday
Analytic Time

15 - 20 days

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

    A fasting specimen is recommended (8-12 hour fast). Collect specimen in a red top or SST tube. Centrifuge and aliquot serum into a screw capped plastic vial within 45 minutes of collection. Freeze (preferred) or send at room temperature or refrigerated within 48 hours.

    Alternate Specimen
    Lavender top (EDTA) is acceptable.
    Fasting Specimen
    Fasting specimen recommended.
    Normal Volume
    1 mL serum
    Minimum Volume
    0.5 mL serum
    Storage Temperature
    Frozen preferred, ambient, refrigerated acceptable
    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