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What is a GLUCOSE FASTING (F) AND POST MEAL (PP) 2 HOURS?

Glucose Fasting (F) and Post Meal (PP) 2 Hours is a blood test that measures blood glucose levels after an overnight fast and again two hours after a meal. It helps evaluate how effectively the body regulates blood sugar and is commonly used to screen for, diagnose, and monitor diabetes and prediabetes. Comparing fasting and post-meal glucose levels enables healthcare providers to assess glucose metabolism and guide appropriate treatment and lifestyle recommendations.

Additional Information

Also known as/ Other names: Fasting & Postprandial Blood Sugar, FBS and PPBS Test, Blood Sugar Fasting and 2 Hr PP, Glucose Fasting and Post Meal Test
Parameters: 1
Recommended for: M/F/Others
Sample Type: Blood
Patient Preparation: Overnight fasting is mandatory. Patient need to have a normal to heavy meal after the collection of fasting sample. Note the time patient starts the meal.
Reports: Same Day

FAQs

How should I prepare for the fasting blood glucose test?

You may need to fast for at least 8–10 hours before the fasting sample. Water is usually allowed, but avoid food, sugary drinks, smoking, and alcohol unless instructed otherwise by your doctor.

Why is the post-meal sample collected exactly two hours after eating?

The two-hour interval reflects how efficiently your body processes glucose after a meal. Measuring blood sugar at this time helps identify impaired glucose metabolism and supports diabetes diagnosis and monitoring.

What does a high fasting glucose level indicate?

An elevated fasting glucose level may suggest prediabetes, diabetes, hormonal disorders, or other conditions affecting glucose metabolism. Further evaluation may be required to confirm the diagnosis.

What does a high post-meal glucose level indicate?

A high post-meal glucose level may indicate impaired glucose tolerance, prediabetes, diabetes, or inadequate blood sugar control in individuals already receiving treatment for diabetes.

Can this test diagnose diabetes?

Yes. The Glucose Fasting and PP test is commonly used to help diagnose diabetes and prediabetes. However, your doctor may recommend additional tests such as HbA1c or an Oral Glucose Tolerance Test.

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