Which triad is associated with intracranial hypertension?

Which triad is associated with intracranial hypertension?

• A. Monroe-Kellie doctrine
• B. Battle's triad
• C. Cushing triad
• D. Cushion triad

Answer: (C)

Rising intracranial pressure manifests as Cushing triad: hypertension with a widened pulse pressure, bradycardia, and irregular or slow respirations. This pattern happens because as ICP increases, cerebral perfusion pressure can drop; the body compensates by raising systemic blood pressure to try to maintain brain perfusion, producing hypertension. The bradycardia comes from a baroreceptor reflex in response to the high blood pressure, and irregular or decreased respirations reflect brainstem irritation from the pressure. Recognizing this triad is a urgent clue that ICP is dangerously elevated and may be progressing toward brain herniation, requiring rapid attempts to lower ICP and treat the underlying cause. The Monroe-Kellie doctrine concerns the fixed volumes of brain tissue, CSF, and blood within the skull and how shifts among them maintain pressure; it explains mechanism but is not a triad. The other terms aren’t standard triads for intracranial hypertension.

Rising intracranial pressure manifests as Cushing triad: hypertension with a widened pulse pressure, bradycardia, and irregular or slow respirations. This pattern happens because as ICP increases, cerebral perfusion pressure can drop; the body compensates by raising systemic blood pressure to try to maintain brain perfusion, producing hypertension. The bradycardia comes from a baroreceptor reflex in response to the high blood pressure, and irregular or decreased respirations reflect brainstem irritation from the pressure. Recognizing this triad is a urgent clue that ICP is dangerously elevated and may be progressing toward brain herniation, requiring rapid attempts to lower ICP and treat the underlying cause. The Monroe-Kellie doctrine concerns the fixed volumes of brain tissue, CSF, and blood within the skull and how shifts among them maintain pressure; it explains mechanism but is not a triad. The other terms aren’t standard triads for intracranial hypertension.