Test Details
Mnemonic
LEP
Ordering Code
3711630
CPT-4 Code(s)
83520
Specimen Information
Collect
Serum separator tube (SST)
Specimen Preparation
Centrifuge, separate serum from cells and send 1.0 mL serum in a screw capped plastic vial.
Alternate Specimen
Serum: Red top
Minimum Volume
0.2 mL
Transport Temperature
Refrigerated
Rejection Criteria
Grossly icteric samples, moderate or gross hemolysis
Stability
Room temperature: 8 hours
Refrigerated: 14 days
Frozen: 35 days
Refrigerated: 14 days
Frozen: 35 days
Methodology
Electrochemiluminescence
Reference Range
Pediatric Male and Female:
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
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
Performing Laboratory
Quest SJC
New York DOH Approval Status
Yes