Full Description
Detects insulin in pancreatic islet cells. Useful for identifying insulin-producing tumors (insulinomas) or islet cell hyperplasia, and for evaluating insulin production in hypoglycemia or diabetes. Cannot distinguish endogenous insulin from exogenous insulin administration.
Methodology
IHC
Specimen Requirements
Collect specimen in a red top or SST tube from a fasting patient. Centrifuge, aliquot serum into plastic vial and refrigerate. Grossly hemolyzed specimens are unacceptable. Fasting specimen, normal volume 1.5 mL serum (minimum 1 mL).
Storage and Transportation
Use cold pack for transport. Make sure cold pack is not indirect contact with specimen.
Turnaround Time
24 - 48 Hrs
CPT Codes
86337