: Esoteric Chemistry
: Chemiluminescent Immunoassay
: 0-150 yrs: 0-16 mcU/mL
: Red top tube
: 1 red microtainer
: 5 mL
: 0.5 mL
: Must be spun in refrigerated centrifuge and separated.
: Frozen: 7 days
Reasons for Rejection
: QNS, EDTA plasma
: 1 day
: This test should be measured to establish the pathogenesis of fasting hypoglycemia. The NACB guidelines suggest that there is no role for routine insulin in most diabetic patients. Diabetes Care 34:e61-e99,2011. Patients receiving insulin therapy may develop anti-insulin antibodies which could interfere with the assay. This assay shows variable cross reactivity (0-50% depending on concentration) with recombinant human insulin (Humulin R or Humulin N) and minimal cross reactivity with insulin analogs (aspart, glargine and lispro) and should not be used to monitor compliance to insulin therapy.
: Fasting specimen. Non fasting specimens are acceptable for special studies.
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