Specimen Requirements
Title
Insulin, Free (Bioactive)
Specimen Requirement
Overnight fasting is required.
1-SST/0.5mL serum. After 30 minutes of clotting, promptly centrifuge and refrigerate.
Methodology
Stability
Room Temperature 12 hours, Refrigerated 7 days
Reference Range
By Report*
Turnaround
4-7 days
Clinical Use
Determine free and bound insulin levels
Test Code
INSFR