Test Name: Insulin
Formal Name: Insulin
Other Names: Serum Insulin, Insulin
Normal Fasting: 2-20 uIU/mL (varies). High: Insulin resistance or high insulin intake. Low: Type 1 diabetes.
Why Test: To diagnose diabetes (type 1 vs type 2), monitor insulin therapy, and assess insulin resistance.
When to Test: Hyperglycemia (high blood sugar), suspected type 1 diabetes (in children), or monitoring diabetic control.
Test Principle: Immunoassay (Chemiluminescence).
Q1: Can I have high insulin and normal sugar? A1: Yes, early Type 2 diabetes (insulin resistance) often has high insulin to compensate. Q2: Does oral insulin affect the test? A1: Yes, tell your doctor if you are taking insulin.
