What is the primary purpose of initial CT imaging in suspected stroke?

What is the primary purpose of initial CT imaging in suspected stroke?

• A. Visualize acute brain hemorrhage only
• B. Assess skull bone integrity
• C. Determine brain age
• D. Rules out cerebral hemorrhage and establish IV thrombolytic eligibility

Answer: (D)

In suspected stroke, the first CT scan is done to guide urgent treatment by quickly distinguishing hemorrhage from an ischemic event and to determine whether intravenous thrombolysis can be given. A non-contrast CT is fast and highly effective at detecting acute intracranial bleeding; if bleed is present, thrombolysis is contraindicated. If there is no hemorrhage, the patient may be eligible for IV thrombolysis within the treatment window, assuming other criteria are met. While CT can also reveal other important findings, its primary role here is ruling out cerebral hemorrhage to establish thrombolytic eligibility. The other options miss this core purpose: visualizing hemorrhage alone is too narrow, skull bone integrity isn’t the central concern in acute stroke triage, and brain age is not relevant to initial stroke management.

In suspected stroke, the first CT scan is done to guide urgent treatment by quickly distinguishing hemorrhage from an ischemic event and to determine whether intravenous thrombolysis can be given. A non-contrast CT is fast and highly effective at detecting acute intracranial bleeding; if bleed is present, thrombolysis is contraindicated. If there is no hemorrhage, the patient may be eligible for IV thrombolysis within the treatment window, assuming other criteria are met. While CT can also reveal other important findings, its primary role here is ruling out cerebral hemorrhage to establish thrombolytic eligibility. The other options miss this core purpose: visualizing hemorrhage alone is too narrow, skull bone integrity isn’t the central concern in acute stroke triage, and brain age is not relevant to initial stroke management.