Kussmaul respirations are best described as:

Kussmaul respirations are best described as:

• A. Shallow breathing with normal acid-base balance.
• B. Deep, labored breathing associated with metabolic acidosis.
• C. Rapid breathing due to anxiety.
• D. Slow breathing due to high CO2 retention.

Answer: (B)

Kussmaul respirations are a compensatory response to metabolic acidosis. The body increases ventilation, producing deep, labored breaths with a steady cadence, to blow off carbon dioxide and raise pH. This pattern—deep, rapid, and strenuous breathing used to expel CO2—occurs most often with severe metabolic acidosis such as diabetic ketoacidosis or lactic acidosis. It’s not shallow breathing with a normal acid-base balance, not rapid breathing driven purely by anxiety, and not slow breathing from CO2 retention; those scenarios don’t feature the characteristic deep, effortful breaths aimed at acid-base correction.

Kussmaul respirations are a compensatory response to metabolic acidosis. The body increases ventilation, producing deep, labored breaths with a steady cadence, to blow off carbon dioxide and raise pH. This pattern—deep, rapid, and strenuous breathing used to expel CO2—occurs most often with severe metabolic acidosis such as diabetic ketoacidosis or lactic acidosis. It’s not shallow breathing with a normal acid-base balance, not rapid breathing driven purely by anxiety, and not slow breathing from CO2 retention; those scenarios don’t feature the characteristic deep, effortful breaths aimed at acid-base correction.