The blood sugar test is a test used to determine how much sugar is present in a blood sample after a person has fasted overnight, Dr. Denis said. Fasting really means refraining from eating or drinking any food or liquid other than water for at least 8 hours. An empty stomach blood glucose (sugar) test is used to detect diabetes.
Usually a blood sample is taken at the laboratory or hospital in the morning before breakfast. The normal range of on an empty stomach glucose is between 70 and 100 mg/dL. Lean glucose levels between 100 and 126 mg/dL indicate diabetes, and a person is declared diabetic if the blood glucose level is 126 mg/dL or higher, Dr. Slinkin specifies.
How does the blood sugar level FBS change with meals?
How does blood sugar change while eating? Blood sugar test.
Blood sugar levels rise after meals and usually peak about an hour after meals. The increase in blood sugar levels and the exact time of its peak depends on the food a person has eaten. A large meal often increases blood sugar levels, as with a meal containing high-sugar carbohydrates such as white bread and sweet snacks.
Typically, higher blood sugar levels encourage the pancreas to release insulin, and insulin lowers blood sugar levels, destroying it so that the body can use it for energy or store it for later use. However, people with diabetes may face the following problems:
Patients with type 1 diabetes do not produce the required amount of insulin because the body attacks the cells that produce insulin.