What is the term used for a patient’s breathing that alternates between hyperpnea and apnea?

The correct term for a patient’s breathing that alternates between hyperpnea (abnormally deep or rapid breathing) and apnea (a temporary cessation of breathing) is Cheyne-Stokes respirations. This pattern of breathing is often indicative of certain medical conditions affecting the brain or the body's ability to regulate breathing, such as heart failure, stroke, or brain injuries.

Cheyne-Stokes respirations are characterized by a cyclical pattern where the breathing gradually increases in depth and sometimes in rate, followed by a decrease in depth until breathing stops for a brief period. This can lead to cycles of increased and decreased ventilation, which is descriptive of the alternating nature mentioned in the question.

Understanding this pattern is crucial for health professionals, as it can provide insight into the underlying health issues that a patient may be experiencing and guide appropriate interventions.