is 8.5 glucose level high

An 8.5 glucose level can be considered high depending on the context:

• Fasting Blood Sugar: A fasting blood sugar level of 8.5 mmol/L (153 mg/dL) is higher than the normal range (3.9–5.5 mmol/L or 70–100 mg/dL) and may indicate prediabetes or diabetes.
• Post-Meal Blood Sugar: A post-meal blood sugar level of 8.5 mmol/L (153 mg/dL) is within the target range for most people with diabetes (typically less than 10 mmol/L or 180 mg/dL).
• A1C Equivalent: An A1C level of 8.5% corresponds to an estimated average glucose (eAG) of 197 mg/dL (10.9 mmol/L), which is above the target for most people with diabetes (usually less than 7%).

If you consistently have blood sugar levels of 8.5 mmol/L or higher, consult your healthcare provider for further evaluation and management.