CAMRT Radiography Practice Exam

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Study for the CAMRT Radiography Exam. Enhance your knowledge with flashcards and multiple choice questions, complete with hints and explanations. Get exam-ready!

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What is an embolus?

A blood clot formed at the site of injury
A blood clot that has broken loose
Abnormal tissue growth in the vein
A type of severe headache

The correct answer is: A blood clot that has broken loose

An embolus refers specifically to a blood clot that has detached from its original site and is now traveling through the bloodstream. This can pose a significant risk because as it moves, the embolus can lodge in smaller blood vessels, leading to blockages that can affect blood flow to vital organs, potentially causing conditions like embolic stroke or pulmonary embolism. The other options describe concepts related to blood and vascular health, but they do not define an embolus accurately. A blood clot formed at the site of injury is known as a thrombus, which is different from an embolus, as it remains at the site of formation. Abnormal tissue growth in a vein refers to conditions like varicose veins or tumors, which again is not the same as an embolus. A type of severe headache, such as a migraine, does not relate to this vascular terminology at all.