Nutrition
CGM High and Low Alerts
CGM high and low alerts notify you when glucose crosses set thresholds—tune them to balance safety, learning, and sleep without constant alarm fatigue.
CGM high and low alerts are customizable notifications when continuous glucose monitor readings cross thresholds—helpful for type 2 on insulin or sulfonylureas, and for learning meal responses. Set urgent lows conservatively to avoid alarm fatigue; rate-of-change alerts catch fast drops.
Night alerts support safety but can disrupt sleep if too sensitive.
Common questions
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Should you treat every CGM high alert with food changes?
Brief highs after meals can be normal—look at patterns over days. Treat per your clinician's plan; avoid stacking corrections that cause rebound lows.
Related terms
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