| Ordering Recommendation: |
Aids in the detection of insulinoma. May aid in distinguishing type 1 from type 2 diabetes mellitus (DM) in ambiguous cases. Do not use to diagnose DM.
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| Methodology: |
Quantitative Chemiluminescent Immunoassay
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| Performed: |
Sun-Sat
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| Reported: |
Within 24 hours
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| Specimen Required: |
Patient Prep: 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 ARUP Standard Transport Tube.
Storage/Transport Temperature: Transport 1 mL serum or plasma, frozen. (Min: 0.5 mL)
Unacceptable Conditions: Grossly hemolyzed specimens.
Stability (collection to initiation of testing): After separation from cells: Ambient: 8 hours; Refrigerated: 2 days; Frozen: 1 month
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