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CODE TEST CPT CODE SPECIMEN REQUIREMENTS / REFERENCE RANGES
7499, BLOD0221  C Peptide Serum or Plasma
by Immunoassay
84681 1 mL serum preferred (0.7 mL minimum). An overnight fast is preferred. Heparinized plasma also acceptable. Refrigerate or freeze as noted below. If frozen, THIS TEST REQUIRES ITS OWN FROZEN ALIQUOT.
Stability: REFT - 4 days            Frozen - 7 days


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