A hormone called insulin helps the body process glucose. Diabetes is brought on by a lack of insulin or a decline in its function. A high insulin level might result in hypoglycemia (low blood glucose). This test doesn't require fasting to measure the level of insulin in the blood. The test is used to identify a pancreatic tumor origin, diagnose hypoglycemia, or check on the status of diabetes. If you experience hypoglycemia symptoms like perspiration, an erratic pulse, shaking, confusion, dizziness, or intense hunger, you might require this test. This examination is also employed to identify Type 1 diabetes.