FBS & PPBS (Fasting & Postprandial Blood Sugar)

Glucose is the body’s main source of energy and comes from the carbohydrates in the food we eat. After meals, carbohydrates are broken down into glucose, which enters the bloodstream and is used by the body’s cells. The pancreas secretes insulin in response to a glucose load, and it helps glucose to move inside the cells for utilization. 

Diabetes is a chronic condition in which blood glucose (sugar) levels are higher than normal. It occurs when the body either does not produce enough insulin or cannot use insulin effectively, leading to a buildup of glucose in the blood. Early detection and treatment of diabetes are essential to prevent complications such as heart disease, kidney damage, and nerve damage.

An FBG (fasting blood glucose) test provides insights into your body’s baseline regulation of glucose after a period of no calorie intake (minimum 8 hrs), while PPBG (post-prandial blood glucose) determines how well your body manages the glucose spike after a meal. Both of them help to screen for diabetes and prediabetes. They are also useful in guiding treatment and lifestyle changes to maintain healthy blood glucose levels.

For the first sample (FBG), fast for at least 8–12 hours before the test. During this period, do not eat or drink anything except water. For the second sample (PPBG), have a regular, balanced meal (avoid foods high in sugar or refined carbohydrates), and provide the blood sample two hours after starting the meal.

Inform your doctor about all your medications, as some can affect the test results, potentially requiring dosage adjustments or temporary discontinuation. Always discuss your test results with your doctor, as ranges can vary by lab and individual health needs.

Note:

• You need to place the order only once for this test. Two sample collections will be scheduled. The first sample collection is for the Fasting Blood Sugar (FBS) sample, which will be collected at your scheduled time after the required fasting period. The second sample collection is for the Postprandial Blood Sugar (PPBS) sample and will be scheduled 2 hours after the first sample. Please have your meal after the first sample collection.