how to compute blood sugar

Blood sugar levels are typically measured using a blood glucose meter or through laboratory tests. Here’s how you can compute or interpret blood sugar levels:

• Fasting Blood Sugar (FBS): Measured after not eating for at least 8 hours.

  • Normal: Less than 100 mg/dL
  • Prediabetes: 100–125 mg/dL
  • Diabetes: 126 mg/dL or higher

• Postprandial Blood Sugar (PPBS): Measured 2 hours after eating.

  • Normal: Less than 140 mg/dL
  • Prediabetes: 140–199 mg/dL
  • Diabetes: 200 mg/dL or higher

• Hemoglobin A1C (HbA1c): Reflects average blood sugar over the past 2–3 months.

  • Normal: Below 5.7%
  • Prediabetes: 5.7%–6.4%
  • Diabetes: 6.5% or higher

For accurate results, always follow your healthcare provider’s instructions and use calibrated devices.