Question 1516
{"accessible":false,"alternatives":[{"id":7569,"text":"78 seconds"},{"id":7570,"text":"68 minutes"},{"id":7571,"text":"110 minutes"},{"id":7572,"text":"8 days"},{"id":7573,"text":"230 years"}],"archived":false,"correctAlternativeId":7571,"explanation":"\u003cp\u003eThe half-life of F-18 FDG is 110 minutes. This makes for a good radiopharmaceutical because it is long enough to be able to transport but not too long that the patient is radioactive for an extended period of time. Tracers like Rubidium which has a half-life of 78 seconds must be used almost immediately.\u003c/p\u003e","id":1516,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2114","nextQuestionPath":null,"relatedArticles":[{"id":29716,"title":"Positron emission tomography","link":"/articles/positron-emission-tomography?lang=gb"}],"alsoUsedIn":[{"id":232,"kind":"Course","title":"PET-CT for the non-PET reporting radiologist","link":"https://radiopaedia.org/courses/pet-ct-for-the-non-pet-reporting-radiologist"},{"id":650,"kind":"Course","title":"Radiology lectures for ENT Trainees - page 650","link":"https://radiopaedia.org/courses/radiology-lectures-for-ent-trainees/pages/650"},{"id":650,"kind":"Course","title":"Lectures by David Little - page 650","link":"https://radiopaedia.org/courses/lectures-by-david-little/pages/650"},{"id":650,"kind":"Course","title":"Radiopaedia 2020 - Lectures Only - page 650","link":"https://radiopaedia.org/courses/radiopaedia-2020-exclusive/pages/650"},{"id":650,"kind":"Course","title":"2020 Virtual Conference Private Use - page 650","link":"https://radiopaedia.org/courses/2020-virtual-conference-private-use/pages/650"},{"id":650,"kind":"Course","title":"Nuclear Medicine Lectures - page 650","link":"https://radiopaedia.org/courses/nuclear-medicine-lectures/pages/650"}],"stem":"\u003cp\u003eWhat is the half-life of F-18 FDG?\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/1516"}],"attemptsPercentages":[{"alternativeId":"7570","percentage":15},{"alternativeId":"7569","percentage":4},{"alternativeId":"7571","percentage":77},{"alternativeId":"7572","percentage":3},{"alternativeId":"7573","percentage":0}],"promptToLogin":false,"questionManager":false,"articleId":"f-18-fluorodeoxyglucose"}