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25103 Leptin (500237)

Leptin (500237)
Test Code: LEPTNSO
Useful For
​Leptin is a 167 amino acid protein that is primarily secreted by adipocytes. Blood levels of leptin reflect body fat stores.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
​Preferred Serum​ ​Red Top Tube (RTT) ​ ​1 mL ​0.5 mL  (This volume does not permit repeat analysis) ​
Collection Processing Instructions

Separate off cells and freeze within one hour. A fasting sample is recommended. 

Specimen Stability Information
Specimen Type Temperature Time
​Serum ​Frozen ​200 days
Rejection Criteria
Specimen not stored and shipped frozen.
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Esoterix Endocrine Laboratory​ Tuesday and Thursday​ 2-6 days​ ELISA​
Reference Lab
Esoterix Endocrine Laboratory
Test Information

This test should be regarded as 'Research Use Only'. This test has not been cleared or approved by the U.S. Food and Drug Administration. It may not be covered by insurance and providers need to inform all patients of this prior to ordering.  ​

Reference Range Information
Performing Location Reference Range
Esoterix Endocrine Laboratory​ Interpretive report​
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
​83520 ​ ​ ​ ​
Classification

This test should be regarded as 'Research Use Only'. This test has not been cleared or approved by the U.S. Food and Drug Administration. It may not be covered by insurance and providers need to inform all patients of this prior to ordering.  ​

Ordering Applications
Ordering Application Description
​Centricity ​Leptin (500237)
​Cerner ​None
​COM ​Leptin
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
​Preferred Serum​ ​Red Top Tube (RTT) ​ ​1 mL ​0.5 mL  (This volume does not permit repeat analysis) ​
Collection Processing

Separate off cells and freeze within one hour. A fasting sample is recommended. 

Specimen Stability Information
Specimen Type Temperature Time
​Serum ​Frozen ​200 days
Rejection Criteria
Specimen not stored and shipped frozen.
Useful For
​Leptin is a 167 amino acid protein that is primarily secreted by adipocytes. Blood levels of leptin reflect body fat stores.
Reference Range Information
Performing Location Reference Range
Esoterix Endocrine Laboratory​ Interpretive report​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Esoterix Endocrine Laboratory​ Tuesday and Thursday​ 2-6 days​ ELISA​
Reference Lab
Esoterix Endocrine Laboratory
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
​83520 ​ ​ ​ ​
Classification

This test should be regarded as 'Research Use Only'. This test has not been cleared or approved by the U.S. Food and Drug Administration. It may not be covered by insurance and providers need to inform all patients of this prior to ordering.  ​

For most current information refer to the Marshfield Laboratory online reference manual.