Which physical sign from the cancer stress scenario is most indicative of stress?

Which physical sign from the cancer stress scenario is most indicative of stress?

• A. Constricted pupils
• B. Dilated peripheral blood vessels (flush)
• C. Hyperventilation
• D. Decreased heart rate

Answer: (C)

The sign most linked to a stress response is rapid breathing. When someone perceives a threat or distress—such as a cancer diagnosis or concerns about treatment—the body activates the sympathetic branch of the autonomic nervous system. This “fight-or-flight” reaction speeds up heart rate, dilates airways, and increases respiratory rate to boost oxygen delivery to tissues. Hyperventilation is a direct manifestation of this heightened arousal and anxiety. Constricted pupils reflect parasympathetic activity or nonstress states, not the acute stress response. A flush from dilated peripheral vessels is not the typical pattern of stress; in acute sympathetic activation the skin is more often pale due to vasoconstriction in the skin. A decreased heart rate goes against the expected response of stress, which usually raises heart rate. So among the options, hyperventilation best indicates the stress response in this cancer scenario.

The sign most linked to a stress response is rapid breathing. When someone perceives a threat or distress—such as a cancer diagnosis or concerns about treatment—the body activates the sympathetic branch of the autonomic nervous system. This “fight-or-flight” reaction speeds up heart rate, dilates airways, and increases respiratory rate to boost oxygen delivery to tissues. Hyperventilation is a direct manifestation of this heightened arousal and anxiety.

Constricted pupils reflect parasympathetic activity or nonstress states, not the acute stress response. A flush from dilated peripheral vessels is not the typical pattern of stress; in acute sympathetic activation the skin is more often pale due to vasoconstriction in the skin. A decreased heart rate goes against the expected response of stress, which usually raises heart rate. So among the options, hyperventilation best indicates the stress response in this cancer scenario.