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.
    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