A nurse is assisting with the assessment of a client who has flail chest. Which of the following findings should the nurse expect?

A. Only the flail segment pulling inward during inspiration: In flail chest, a segment of the rib cage is detached from the rest of the chest wall. During inspiration, the negative intrathoracic pressure causes the flail segment to move inward, opposite to the normal outward movement of the chest. B. Only the flail segment pulling inward during expiration: During expiration, the flail segment moves outward while the rest of the chest wall moves inward, showing paradoxical movement, not inward movement alone. C. The entire chest pulling inward during expiration: Normal chest movement involves inward motion of the entire chest during expiration, but flail chest specifically shows paradoxical motion of the detached segment relative to the rest of the chest. D. The entire chest pushing outward during inspiration: During inspiration, the majority of the chest expands outward, but the flail segment moves inward due to its detachment. The entire chest pushing outward does not describe the paradoxical motion characteristic of flail chest.