A patient who has suffered a transient ischemic attack has been ordered to undergo a carotid duplex. Which best describes how this test is performed?


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- An ultrasound that checks blood flow through certain arteries

- A CT scan of the head and neck to assess function

- A scan that uses radioactive substances while taking pictures of the neck

- A type of MRI that is targeted on the carotid arteries


A carotid duplex test checks the flow of blood through the carotid artery. The test is an ultrasound performed over the carotid arteries in the neck. It can be used to detect the presence of blood clots or obstructions in these major arteries that could be contributing to symptoms of a TIA or stroke.

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