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HelpTest Code FLEP Leptin
Specimen Required
Patient Preparation: Fasting 8-12 hours is recommended.
Specimen Type: Serum
Container/Tube: Red or SST
Specimen Volume: 1 mL
Collection Instructions: Draw blood in a plain red-top tube(s), serum gel tube(s) is acceptable. Separate from cells within 45 minutes of venipuncture and send 1 mL of serum frozen in a plastic vial.
Note: EDTA (lavender-top) plasma is an acceptable alternate.
Method Name
Enzyme-linked immunosorbent assay (ELISA)
Reporting Name
LeptinSpecimen Type
SerumSpecimen Minimum Volume
0.5 mL
NOTE: Minimum volume does not allow for repeat analysis.
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Frozen (preferred) | |
| Refrigerated | 14 days | |
| Ambient | 8 days | |
Reject Due To
| Hemolysis | Reject |
| Lipemia | Reject |
Reference Values
Units: ng/mL
Adults (BMI=22)
Males: 0.7-5.3
Females: 3.3-18.3
Contact laboratory for other BMI reference ranges.
Day(s) Performed
Monday, Wednesday, and Saturday
Report Available
13 to 19 daysPerforming Laboratory
Esoterix EndocrinologyTest Classification
This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.CPT Code Information
83520
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FLEP | Leptin | 21365-2 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| Z0262 | Leptin | 21365-2 |