Diagnostic Testing Medical

Test name: Insulin

Order Code: INSULIN

Preferred Specimen: 2mL serum in a Serum Separator Tube (SST or Tiger-top)

CPT Code: 83525

Collection: Allow SST to clot in an upright position for 30 min, then centrifuge sample within 2 hours of collection. Refrigerate.

Special Instructions and Considerations: Samples should not be taken from patients receiving therapy with high biotin doses (i.e. > 5 mg/day) until at least 8 hours following the last biotin administration. Samples from patients treated with bovine, porcine, or human insulin sometimes contain anti-insulin antibodies which can affect test results. Hemolysis interferes.

Transport Temperature: Refrigerated

Specimen Stability: 7 days refrigerated

Causes for Rejection: Hemolysis

Arbor Diagnostics