The factor most likely initiated the physiological responses is the delayed psychological response to trauma.
Trauma simply means an emotional response to a terrible event such as an accident, natural disaster, etc. After the occurrence of a bad happening, denial and shock typically occur.
Therefore, since the hospitalized client becomes very restless and experiences sudden tachycardia with tachypnea when describing the self-sustained major automobile collision to a friend, it illustrates a delayed psychological response to trauma.
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