is 138 high blood sugar
Asked by: SugarWatcher99
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Community Answer
Answered by Dr. Emily Carter, MD
A blood sugar level of 138 mg/dL can be considered high depending on the context:
- Fasting Blood Sugar: If this reading is taken after fasting (no food for at least 8 hours), it is higher than the normal range (70–99 mg/dL) and may indicate prediabetes or diabetes.
- Post-Meal Blood Sugar: If this reading is taken 1–2 hours after eating, it is within the normal range (less than 140 mg/dL is generally acceptable).
What to Do:
- If fasting blood sugar is consistently 100–125 mg/dL, it may indicate prediabetes.
- If fasting blood sugar is consistently 126 mg/dL or higher, it may indicate diabetes.
- Consult your healthcare provider for further evaluation and testing, such as an A1C test, which provides an average blood sugar level over the past 2–3 months.
A1C Ranges:
- Normal: Below 5.7%
- Prediabetes: 5.7%–6.4%
- Diabetes: 6.5% or higher