What is a common characteristic of Cheyne-Stokes respirations?

• A. Consistent shallow breathing
• B. Sudden deep breaths followed by a pause
• C. Alternating periods of apnea and hyperventilation
• D. Rapid continuous breathing

Answer: (C)

Cheyne-Stokes respirations are characterized by a distinct pattern of breathing where there are alternating periods of apnea (the absence of breathing) and hyperventilation (increased breathing rate and depth). This type of respiration typically starts with a gradual increase in the depth and rate of breathing, reaching a peak, followed by a gradual decrease, and eventually leading to a complete stop in breathing for a short period. This cycle then repeats itself.

This phenomenon is often observed in conditions such as heart failure, stroke, or brain injury, making it a significant clinical indicator. The rhythmic pattern of breathing fluctuations helps differentiate Cheyne-Stokes from other types of abnormal respiratory patterns. The precise cycle of alternating between breath and apnea is what makes this characteristic so notable, distinguishing it from other breathing irregularities which may not involve this specific alternation in breathing patterns.