What Is A1C?
The A1C test (glycated hemoglobin) reflects your average blood glucose over the past 2–3 months. It's a key metric for diagnosing and managing diabetes.
Interpreting Results
- Normal: Below 5.7%
- Prediabetes: 5.7%–6.4%
- Diabetes: 6.5% or above (on two separate tests)
If Your A1C Is High: Immediate Steps
- Contact Your Healthcare Provider. Do not self-adjust medications.
- Review Recent Blood Glucose Logs. Identify patterns (fasting, post-meal, overnight).
- Assess Medication Adherence. Missed doses, timing, or need for adjustment.
- Evaluate Diet & Activity. Carbohydrate consistency, portion sizes, physical activity levels.
- Check for Acute Factors. Illness, stress, steroids, or new medications can temporarily raise glucose.
Long-Term Management
- Individualized A1C target (often <7% for many adults; higher for elderly/frail).
- Medication optimization (metformin, GLP-1 agonists, SGLT2 inhibitors, insulin, etc.).
- Structured diabetes education and nutrition counseling.
- Regular monitoring: A1C every 3–6 months; daily glucose checks as advised.
- Screen for complications: eyes, kidneys, nerves, cardiovascular risk.
Never ignore a high A1C. Persistent hyperglycemia accelerates microvascular and macrovascular damage. Partner with your care team for a safe, effective plan.
