Which term describes unpredictable irregular breathing?

• A. Ataxic Breathing
• B. Cheyne-Stokes Breathing
• C. Hyperpnea
• D. Tachypnea

Answer: (A)

Unpredictable irregular breathing is described by ataxic breathing. This pattern shows no repeating rhythm: breaths vary in depth and there are irregular pauses, with unpredictable timing between breaths. It usually results from severe brainstem injury affecting the respiratory centers, so the control of breathing becomes discordant and erratic.

In contrast, Cheyne-Stokes breathing has a regular, cyclical pattern of progressively deeper and shallower breaths followed by a pause; hyperpnea involves increased depth and rate with a regular rhythm; tachypnea is rapid but typically regular breathing.