What diagnostic procedure is used to locate the site of bleeding after a subarachnoid hemorrhage?

What diagnostic procedure is used to locate the site of bleeding after a subarachnoid hemorrhage?

• A. Cerebral angiogram
• B. Abdominal ultrasound
• C. Echocardiogram
• D. Pelvic X-ray

Answer: (A)

Visualizing the brain’s blood vessels is how you locate where a subarachnoid hemorrhage is coming from. A cerebral angiogram directly images the cerebral arteries by threading a catheter and injecting contrast, revealing aneurysms, arteriovenous malformations, or other ruptured vessels. This precise mapping is what guides treatment choices like surgical clipping or endovascular coiling. The other tests look at areas outside the brain and won’t show intracranial vessels or the source of bleeding, so they aren’t used to locate the bleed after SAH.

Visualizing the brain’s blood vessels is how you locate where a subarachnoid hemorrhage is coming from. A cerebral angiogram directly images the cerebral arteries by threading a catheter and injecting contrast, revealing aneurysms, arteriovenous malformations, or other ruptured vessels. This precise mapping is what guides treatment choices like surgical clipping or endovascular coiling. The other tests look at areas outside the brain and won’t show intracranial vessels or the source of bleeding, so they aren’t used to locate the bleed after SAH.