Which diagnostic test is urgently required to differentiate ischemic from hemorrhagic stroke in code stroke?

Which diagnostic test is urgently required to differentiate ischemic from hemorrhagic stroke in code stroke?

• A. MRI with contrast
• B. CT angiography
• C. EEG
• D. Non-contrast CT scan of the head

Answer: (D)

In code stroke, the top priority is to rapidly distinguish a hemorrhage from an ischemic event to guide immediate treatment decisions. A non-contrast CT scan of the head is the fastest, most reliable way to do this in the emergent setting. It can quickly reveal an intracranial bleed without needing IV contrast, which is crucial because the presence of hemorrhage changes the entire management plan and rules out thrombolysis. While MRI can detect early ischemic changes more sensitively, it typically isn’t as readily available or as fast in an emergency, and CT angiography evaluates vessels rather than confirming whether a bleed is present. EEG isn’t useful for acute stroke differentiation. If the non-contrast CT shows no hemorrhage, ischemic stroke becomes the likely diagnosis and reperfusion therapies may be pursued; if hemorrhage is present, thrombolysis is contraindicated and different care is required.

In code stroke, the top priority is to rapidly distinguish a hemorrhage from an ischemic event to guide immediate treatment decisions. A non-contrast CT scan of the head is the fastest, most reliable way to do this in the emergent setting. It can quickly reveal an intracranial bleed without needing IV contrast, which is crucial because the presence of hemorrhage changes the entire management plan and rules out thrombolysis.

While MRI can detect early ischemic changes more sensitively, it typically isn’t as readily available or as fast in an emergency, and CT angiography evaluates vessels rather than confirming whether a bleed is present. EEG isn’t useful for acute stroke differentiation. If the non-contrast CT shows no hemorrhage, ischemic stroke becomes the likely diagnosis and reperfusion therapies may be pursued; if hemorrhage is present, thrombolysis is contraindicated and different care is required.