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Insulin, Free and Total

CPT Code(s): 83525; 83527
Specimen Required: Patient Preparation:
Collect:Serum separator tube or plain red. Also acceptable: Lavender (EDTA), or pink (K2EDTA).
Specimen Preparation:Transfer 2 mL serum or plasma to an RDL Standard Transport Tube. (Min: 1.1 mL)
Storage/Transport Temperature:Frozen. Separate specimens must be submitted when multiple tests are ordered.
Stability:After separation from cells: Ambient: 8 hours; Refrigerated: 1 week; Frozen: 1 month
New York DOH Approval Status: This test is New York DOH approved.
Aliases:
  • Free and Total insulin
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