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25103 Leptin (500716)

Leptin (500716)
Test Code: LEPTNSO
Specimen Requirements
Fasting Required

Specimen Type

(One of the following)

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) ​Serum Separator Tube (SST) ​1 mL ​0.5 mL  (This volume does not allow for repeat analysis) ​
​Preferred​EDTA Plasma​EDTA Lavender Top Tube (LTT)​​1 mL​0.5 mL (This volume does not allow for repeat analysis)
​
Collection Processing Instructions

Fasting specimen (8-12 hours) is recommended.  Separate from cells within 45 minutes of venipuncture.  Send 1 mL serum or plasma frozen in a plastic vial.    

Specimen Stability Information

Specimen Type Temperature Time
​​Serum or
EDTA Plasma
​
 ​Frozen ​200 days
​Ambient
​48 hours
​​Refrigerated
​48 hours
Rejection Criteria
Specimen not stored and shipped frozen.
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
LabCorp forwards to Esoterix Monday, Wednesday and Saturday​ 2-6 days
 Enzyme-linked Immunosorbent Assay (ELISA)​
Reference Lab
LabCorp of America
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
LabCorp forwards to Esoterix Age Range (ng/mL) Adults (BMI=22) Males 0.7 - 5.3 Females 3.3 - 18.3
Contact the laboratory for other BMI reference ranges.
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
​Cerner Leptin (500716)

If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required

Specimen Type

(One of the following)

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) ​Serum Separator Tube (SST) ​1 mL ​0.5 mL  (This volume does not allow for repeat analysis) ​
​Preferred​EDTA Plasma​EDTA Lavender Top Tube (LTT)​​1 mL​0.5 mL (This volume does not allow for repeat analysis)
​
Collection Processing

Fasting specimen (8-12 hours) is recommended.  Separate from cells within 45 minutes of venipuncture.  Send 1 mL serum or plasma frozen in a plastic vial.    

Specimen Stability Information

Specimen Type Temperature Time
​​Serum or
EDTA Plasma
​
 ​Frozen ​200 days
​Ambient
​48 hours
​​Refrigerated
​48 hours
Rejection Criteria
Specimen not stored and shipped frozen.
Reference Range Information
Performing Location Reference Range
LabCorp forwards to Esoterix Age Range (ng/mL) Adults (BMI=22) Males 0.7 - 5.3 Females 3.3 - 18.3
Contact the laboratory for other BMI reference ranges.
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
LabCorp forwards to Esoterix Monday, Wednesday and Saturday​ 2-6 days
 Enzyme-linked Immunosorbent Assay (ELISA)​
Reference Lab
LabCorp of America
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.