Diabetes

Blood Glucose Testing — How and When to Check

When and how to test blood glucose, what the numbers mean, and why it matters for Type 1 Diabetes management.

Updated: 1 min read

Blood Glucose Testing — How and When to Check

Checking blood glucose is the simplest, most direct way to know what’s happening right now. Even with a CGM, finger‑prick testing still matters.

When to check

  • Before meals and before bed
  • Before driving
  • During and after exercise
  • When sick or adjusting insulin
  • If symptoms don’t match CGM readings

Why it matters

  • Early detection of highs/lows prevents accidents and hospital visits.
  • Frequent checks improve pattern recognition.
  • Supports safer insulin adjustments.