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Multiple Choice

Cushing reflex triad consists of which combination?

Increased intracranial pressure triggers a Cushing reflex, a protective but late response that produces a characteristic set of vital-sign changes: hypertension, bradycardia, and irregular respirations. The elevated blood pressure helps sustain cerebral perfusion when the brain is compressed, the heart rate slows as a reflex to the higher blood pressure, and brainstem irritation from the pressure disrupts normal respiratory patterns, leading to irregular breathing. This combination—high blood pressure, slow heart rate, and irregular breathing—is the hallmark of the Cushing triad and signals serious intracranial process, often requiring urgent intervention to reduce ICP. The other options mix in tachycardia, hypotension, or regular respirations, which do not fit this classic pattern.

Increased intracranial pressure triggers a Cushing reflex, a protective but late response that produces a characteristic set of vital-sign changes: hypertension, bradycardia, and irregular respirations. The elevated blood pressure helps sustain cerebral perfusion when the brain is compressed, the heart rate slows as a reflex to the higher blood pressure, and brainstem irritation from the pressure disrupts normal respiratory patterns, leading to irregular breathing. This combination—high blood pressure, slow heart rate, and irregular breathing—is the hallmark of the Cushing triad and signals serious intracranial process, often requiring urgent intervention to reduce ICP. The other options mix in tachycardia, hypotension, or regular respirations, which do not fit this classic pattern.