Question 1766
{"accessible":true,"alternatives":[{"id":8772,"text":"A"},{"id":8773,"text":"B"},{"id":8774,"text":"C"},{"id":8775,"text":"D"},{"id":8776,"text":"E"}],"archived":false,"correctAlternativeId":8773,"explanation":"\u003cp\u003eThe ability of the brain to locally autoregulate by vasodilation (increase in CBV) allows it to maintain normal cerebral blood flow.\u0026nbsp;\u003c/p\u003e","id":1766,"imageUrl":"https://prod-images-static.radiopaedia.org/multiple_choice_questions/259/Slides-for-perfusion-case.key_big_gallery.jpeg","imageAttribution":{"kind":"external","attribution":"Aaron S. Field MD, PhD"},"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/1769","nextQuestionPath":null,"relatedArticles":[],"alsoUsedIn":[],"stem":"\u003cp\u003eIn the accompanying\u0026nbsp;graphic, that depicts\u0026nbsp;the changes in cerebral perfusion parameters with progressively decreasing perfusion pressure, which letter best identifies successful autoregulation?\u0026nbsp;\u003c/p\u003e","menuLinks":[{"text":"Report problem with question","url":"https://docs.google.com/forms/d/e/1FAIpQLSfO3soWYhOjJ7yErSysyCe5V4A1CqW7WK3rDA7MtAkecMGqNw/viewform?entry.1624461248\u0026entry.553583435=https://radiopaedia.org/questions/1766"}],"attemptsPercentages":[{"alternativeId":"8775","percentage":6},{"alternativeId":"8772","percentage":16},{"alternativeId":"8774","percentage":12},{"alternativeId":"8773","percentage":65},{"alternativeId":"8776","percentage":0}],"promptToLogin":false,"questionManager":false,"articleId":"ct-brain-perfusion-protocol"}