Cushing's Triad indicates which condition?

• A. Myocardial infarction
• B. Increased intracranial pressure
• C. Pulmonary embolism
• D. Hypoglycemia

Answer: (B)

Raised intracranial pressure and the Cushing reflex are what this question is testing. Cushing’s Triad is a late, warning sign that the brain is under severe pressure and at risk of herniation. It presents as a triad: markedly raised systolic blood pressure with a wide pulse pressure, a slow heart rate (bradycardia), and irregular or slowed breathing. This pattern happens because the body tries to force more blood into the brain despite rising pressure, the baroreceptors trigger a slowing of the heart, and brainstem dysfunction disrupts respiration. Seeing this triad means you’re dealing with dangerous intracranial hypertension requiring urgent assessment and measures to protect the airway and perfusion. Other conditions like myocardial infarction, pulmonary embolism, or hypoglycemia have different typical signs, so the presence of this specific triad points toward increased intracranial pressure rather than those issues.