Which statement best describes the rationale for hydration during sick day management?

Which statement best describes the rationale for hydration during sick day management?

• A. To increase insulin requirement
• B. To prevent dehydration and help with ketone clearance
• C. To reduce heart rate
• D. To prevent ketosis entirely

Answer: (B)

Hydration on sick days is essential because illness often causes fluid loss through fever, vomiting, or reduced intake, which can quickly lead to dehydration. When you’re dehydrated, kidney perfusion drops and it becomes harder for the body to clear ketones and acids that accumulate when insulin is insufficient or glucose is high. By keeping fluids up, you help maintain blood flow to the kidneys, support ketone excretion, and reduce the risk of diabetic ketoacidosis, all of which improve overall glucose management during illness. Hydration is not about eliminating ketosis entirely—ketosis can occur if insulin is not adequately managed—so fluids help with ketone clearance rather than guaranteeing no ketosis.

Hydration on sick days is essential because illness often causes fluid loss through fever, vomiting, or reduced intake, which can quickly lead to dehydration. When you’re dehydrated, kidney perfusion drops and it becomes harder for the body to clear ketones and acids that accumulate when insulin is insufficient or glucose is high. By keeping fluids up, you help maintain blood flow to the kidneys, support ketone excretion, and reduce the risk of diabetic ketoacidosis, all of which improve overall glucose management during illness. Hydration is not about eliminating ketosis entirely—ketosis can occur if insulin is not adequately managed—so fluids help with ketone clearance rather than guaranteeing no ketosis.