Emboli causing amaurosis fugax typically originate from which artery?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the Vascular Techniques Exam 3. Study with in-depth questions, hints, and explanations to fully understand vascular techniques. Bolster your knowledge and ensure success on your exam!

Multiple Choice

Emboli causing amaurosis fugax typically originate from which artery?

Explanation:
Amaurosis fugax is caused by transient retinal ischemia from emboli that reach the retinal circulation via the ophthalmic artery, which is the first intracranial branch of the internal carotid artery. Because the retinal vessels are supplied through the ophthalmic artery stemming from the internal carotid, emboli originating from the internal carotid are the usual source. Emboli from the external carotid artery don’t reliably enter the retinal circulation, and those from the vertebral or subclavian arteries typically affect other vascular territories (posterior circulation or upper limbs) rather than causing transient monocular blindness.

Amaurosis fugax is caused by transient retinal ischemia from emboli that reach the retinal circulation via the ophthalmic artery, which is the first intracranial branch of the internal carotid artery. Because the retinal vessels are supplied through the ophthalmic artery stemming from the internal carotid, emboli originating from the internal carotid are the usual source.

Emboli from the external carotid artery don’t reliably enter the retinal circulation, and those from the vertebral or subclavian arteries typically affect other vascular territories (posterior circulation or upper limbs) rather than causing transient monocular blindness.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy