L561

Test CODE NAME

L561

Insulin, Free & Total

Methodology: Chemiluminescent immunometric assay (IMA) after insulin extraction of free and total insulin
Performed: Mon- Fri
Reported: 5-6 days
Specimen Required: Collect: Serum Separator Tube (SST) OR Plain Red - 1.5 ml serum . 
Specimen Preparation: Allow specimen to clot completely at room temperature . Separate serum from cells ASAP or within 2 hours of collection. Transfer  serum or plasma to a Standard Transport Tube. 
Storage/Transport Temperature: Refrigerated. 
Stability: After separation from cells: Ambient: 1 days; Refrigerated: 1 week; Frozen: 1 month
NOTE: * This test is approved for all states. *
Performing Laboratory 
LabCorp Laboratory Corporation of America
CPT Code(s): 83525; 83527