Insulin is a hormone made by the pancreas that helps glucose (blood sugar) move from the blood into cells for energy. A fasting insulin test measures how much insulin your body produces when you have…
Category: Diabetes & Glycemic
Also known as: insulin, fasting insulin, serum insulin, ins
Reference range: 2.6–24.9 µIU/mL (Source: ABIM)
Standard unit: µIU/mL
High values may indicate
High fasting insulin levels may indicate insulin resistance, increased risk of type 2 diabetes, polycystic ovary syndrome (PCOS), or Cushing's syndrome.
Low values may indicate
Low insulin levels may indicate type 1 diabetes, or late-stage type 2 diabetes where the pancreas can no longer produce enough insulin.