Diabetes & metabolic health · 4 min read · Evidence-informed guide
Diabetes Sick-Day Plan: Questions to Prepare
Illness can change glucose levels, appetite, hydration, and medicine needs. A diabetes sick-day plan should be personalized before you are ill and should explain when to check glucose, which medicines require special instructions, when to call the office, and when to seek emergency care.
Key answer
The short version
Illness can change glucose levels, appetite, hydration, and medicine needs. A diabetes sick-day plan should be personalized before you are ill and should explain when to check glucose, which medicines require special instructions, when to call the office, and when to seek emergency care.
Plan before you need it
Ask how illness changes glucose-monitoring frequency, fluid intake, food choices, ketone checks when applicable, and medicine instructions. Keep supplies and office contact information available.
Call for individualized advice
Contact a clinician if you are vomiting, cannot keep fluids down, have persistently high or low readings outside your plan, or are unsure how to manage prescribed medicines.
Use emergency care when needed
Severe dehydration, confusion, fainting, severe breathing difficulty, or signs of a medical emergency need emergency evaluation.
Clinical perspective
How to think about this
Illness exposes weaknesses in a diabetes plan. A written sick-day plan turns uncertainty into prepared decisions about glucose checks, hydration, medicines, ketones when relevant, and the threshold for calling for help.
Questions worth bringing to a visit
- Which medicines have special instructions when I am ill?
- How often should I check glucose and ketones, if relevant?
- Which symptoms mean I should seek urgent or emergency care?
Continue exploring
Related patient questions
Sources
Diabetes-management guidance.
2. ADA, Glycemic Goals, Hypoglycemia, and Hyperglycemic Crises—2026
Current professional guidance.