| 1. Flagging is based on Chinese reference intervals. Please review result accordingly. |
| 2. Fasting insulin levels vary between countries due to differences in body size and nutrition. |
| 3. Fasting insulin is often performed together with fasting glucose to help distinguish between insufficient insulin (e.g. diabetes, pancreatitis), hypoglycemia due to excess insulin (e.g. insulinomas, Cushing's, excess exogenous insulin) and insulin resistance (e.g. type 2 diabetes, metabolic syndrome.) |
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| Sources: |
| 1. Zeng Xiao-li et al "The investigation on the reference range and measurement stability of human serum insulin". Chinese Journal of Laboratory Medicine. 2009, 32(3) |
| 2. American Association for Clinical Chemistry. Insulin - Lab Tests Online. 1 Sept 2013 |