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C-Peptide, Serum or Plasma

CPT Code(s): 84681
Specimen Required: Patient Preparation:Fasting specimen preferred.
Collect:Serum separator tube or plasma separator tube. Also acceptable: Green (sodium or lithium heparin), lavender (EDTA), or pink (K2EDTA).
Specimen Preparation:Allow specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP. Submit specimen in an RDL Standard Transport Tube.
Storage/Transport Temperature:
Stability:After separation from cells: Ambient: 8 hours; Refrigerated: 2 days; Frozen: 1 month
New York DOH Approval Status: This test is New York DOH approved.
Aliases:
  • C PeptideC Peptide Connecting Peptide of InsulinC-Peptide, SerumConnecting Peptide of Insulin
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