Description
Why It’s Done:
This test is ordered to:
• Diagnose or monitor Type 1 diabetes mellitus, where the immune system attacks insulin-producing cells
• Evaluate immune responses in patients receiving insulin therapy, which may affect treatment effectiveness
• Investigate causes of unexplained blood sugar fluctuations or insulin resistance
• Assist in diagnosing insulin autoimmune syndrome (IAS), a rare condition causing hypoglycemia
Preparation:
• No special preparation is usually required.
• Blood is drawn from a vein, typically in the arm.
• Inform your healthcare provider about insulin use or medications.
• Fasting is not necessary unless other tests are being done simultaneously.


