GFBS (Fasting Blood Sugar): Measures glucose after at least 8–12 hours of fasting.

GPPBS (Postprandial Blood Sugar): Measures glucose 2 hours after a meal.

Clinical uses include:

Diagnosing diabetes mellitus and prediabetes.

Monitoring blood sugar control in diabetic patients.

Evaluating response to treatment and lifestyle changes.

Detecting impaired glucose tolerance.

These tests are often combined with HbA1c for comprehensive diabetes assessment.

Analyte: Blood glucose concentration (mg/dL).

Normal Ranges:

Fasting (GFBS): < 100 mg/dL (normal), 100–125 mg/dL (prediabetes), ≥ 126 mg/dL (diabetes).

Postprandial (GPPBS): < 140 mg/dL (normal), 140–199 mg/dL (prediabetes), ≥ 200 mg/dL (diabetes).

Clinical Use:

Detects abnormal glucose metabolism.

Differentiates between normal, prediabetic, and diabetic states.

Guides treatment decisions and monitoring in diabetes management.