Leptin
Test Summary
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.
Aliases
- N/A
Specimen Collection
Special Instructions
N/A
Preferred Specimen
1 mL serum
Minimum Volume
0.2 mL
Instructions
N/A
Patient Preparation
N/A
Storage
Plastic screw-cap vial
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
- Room temperature: 8 hours
- Refrigerated: 14 days
- Frozen: 35 days
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
Moderate hemolysis • Gross hemolysis • Hypericteric specimens
Order Code
LEPTIN
EPIC (Premier) Code
LAB5022
Includes
N/A
CPT Code
- 83520
Billing Code
- 700000
CPT Statement
Methodology
Electrochemiluminescence (ECL)
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Physician Attestation of Informed Consent
N/A
Testing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano CA, 92675
33608 Ortega Highway
San Juan Capistrano CA, 92675
Reference Range
Pediatric male and female
Adult Lean Subjects (18-71 Years) with BMI range of 18-25
Adult Subjects (19-60 Years) with BMI range of 25-30
| 5-9.9 Years | 0.6-16.8 ng/mL |
| 10-13.9 Years | 1.4-16.5 ng/mL |
| 14-17.9 Years | 0.6-24.9 ng/mL |
Adult Lean Subjects (18-71 Years) with BMI range of 18-25
| Male | 0.3-13.4 ng/mL |
| Female | 4.7-23.7 ng/mL |
Adult Subjects (19-60 Years) with BMI range of 25-30
| Male | 1.8-19.9 ng/mL |
| Female | 8.0-38.9 ng/mL |
Setup Schedule / Expected Turnaround Time
Monday, Thursday; Report available: 3 days
Specimen Collection
Special Instructions
N/A
Preferred Specimen
1 mL serum
Minimum Volume
0.2 mL
Instructions
N/A
Patient Preparation
N/A
Storage
Plastic screw-cap vial
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
- Room temperature: 8 hours
- Refrigerated: 14 days
- Frozen: 35 days
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
Moderate hemolysis • Gross hemolysis • Hypericteric specimens
Result Information
Methodology
Electrochemiluminescence (ECL)
Testing Laboratory
N/A
Reference Range
Pediatric male and female
Adult Lean Subjects (18-71 Years) with BMI range of 18-25
Adult Subjects (19-60 Years) with BMI range of 25-30
| 5-9.9 Years | 0.6-16.8 ng/mL |
| 10-13.9 Years | 1.4-16.5 ng/mL |
| 14-17.9 Years | 0.6-24.9 ng/mL |
Adult Lean Subjects (18-71 Years) with BMI range of 18-25
| Male | 0.3-13.4 ng/mL |
| Female | 4.7-23.7 ng/mL |
Adult Subjects (19-60 Years) with BMI range of 25-30
| Male | 1.8-19.9 ng/mL |
| Female | 8.0-38.9 ng/mL |
Setup Schedule / Expected Turnaround Time
Monday, Thursday; Report available: 3 days