Centralized Core Laboratory:Chemistry
Mayo Misc. Tube
10.0 mL (minimum 3.0 mL)
Sent to reference lab
Direct Radioimmunoassay (RIA)
Collect 10.0 mL of blood in special tube containing G.I Preservative (Mayo Supply number T125). Specimen should be separated and 3.0 mL plasma frozen as soon as possible.
1. Patient should be fasting 10-12 hours prior to collection.
2. Patient should not be on any antacid medication or medications that affect insulin secretion or intestinal motility, if possible, for at least 48 hours prior to collection.
For Outpatients, test should only be drawn in outpatient locations within a Hospital (Akron or Beeghly).
OC Power Word:
Reference range available on report