Which respiratory pattern is commonly observed in alcoholic ketoacidosis?

Which respiratory pattern is commonly observed in alcoholic ketoacidosis?

• A. Bradypnea
• B. Kussmaul respiration
• C. Cheyne-Stokes
• D. Apneustic breathing

Answer: (B)

In alcoholic ketoacidosis, the body develops a metabolic acidosis from ketone buildup, and the respiratory system responds by increasing ventilation to blow off CO2 and raise pH. This compensatory hyperventilation takes the form of deep, labored, and relatively regular breaths with large tidal volumes—classic Kussmaul respirations. It reflects the body's attempt to correct the acid–base disturbance. Other patterns don’t fit metabolic acidosis. Bradypnea would worsen acidosis by retaining CO2. Cheyne-Stokes involves cyclical shallow breaths followed by progressively deeper breaths and apneic gaps, typically seen with brain injury or heart failure, not a primary metabolic issue. Apneustic breathing shows prolonged inspiration due to brainstem injury, which is not characteristic of this situation.

In alcoholic ketoacidosis, the body develops a metabolic acidosis from ketone buildup, and the respiratory system responds by increasing ventilation to blow off CO2 and raise pH. This compensatory hyperventilation takes the form of deep, labored, and relatively regular breaths with large tidal volumes—classic Kussmaul respirations. It reflects the body's attempt to correct the acid–base disturbance.

Other patterns don’t fit metabolic acidosis. Bradypnea would worsen acidosis by retaining CO2. Cheyne-Stokes involves cyclical shallow breaths followed by progressively deeper breaths and apneic gaps, typically seen with brain injury or heart failure, not a primary metabolic issue. Apneustic breathing shows prolonged inspiration due to brainstem injury, which is not characteristic of this situation.