Postprandial insulin test measures the insulin levels in the blood after two to three hours of food consumption. The test is used to check for diabetes.
Normally after having food, the stomach digests it and glucose levels rise rapidly, in response to this the pancreas releases insulin which help in transport of glucose into the cell for production of energy. If a person has diabetes, there body doesn't make enough insulin to keep the blood sugars in check and the glucose levels remain high. With high blood sugar levels, over a long term, can lead to severe health conditions of the heart, kidney, eyes, nerves, etc.
The test is usually recommended for people with symptoms like frequent urination, increased thirst, increased appetite, weight loss, fatigue or blurred vision and to detect insulin resistance, in cases of suspected or patients with diabetes, in women with PCOS, etc.
Frequently asked questions
How is the blood sample taken?
To take the blood sample, a tourniquet (elastic) band is placed tightly on the upper arm. The patient is then asked to make a fist. This helps in the build-up of blood filling the veins and it becomes easy to collect the blood. The skin is cleaned before inserting the needle in the vein in order to prevent bacteria from entering. Needle is inserted into the vein of the arm and the blood sample is collected in the vacutainer.
What is Type 2 diabetes?
In 2 diabetes, the body either doesn't produce enough insulin, or it is resistant to insulin.
What is Type 1 diabetes?
Type 1 diabetes is a chronic condition in which the pancreas produces little or no insulin.
What are the symptoms of Type 2 diabetes?
The symptoms of Type 2 diabetes include: frequent urination, increased thirst, increased hunger, weight loss, fatigue, blurred vision, etc.