Oct 7, 2021 A multiple-choice quiz consists of: 10 QuestionsQuestions are selected randomly from a collection of 59 questions. More Questions You will get deferent questions every time you take the quiz. Correct AnswersThere could be more than one correct answer, select all that apply.Skip QuestionsYou are allowed to scroll backward and forward before submitting your answers.10 MinutesThe quiz has a time limit. Time's up You can still submit your answers after the allowed period of time has ended . When ready, click Next to start the quiz. Name (Required) Email (Optional) Twitter (Required) 1. [PET] The term “partial volume effect” is caused by the limited resolution of PET scanners and refers to phenomenon that make intensity values in images differ from what they ideally should be. The “hot” spot smaller than twice the resolution of the scanner will have total counts preserved and will appear: Larger with a lower activity concentration Larger with a higher activity concentration Smaller with a lower activity concentration Smaller with a higher activity concentration 2. [CNS] Which of the following artery supply oxygenated blood to the posterior brain? External carotid. Vertebral artery. Common carotid. Internal carotid. 3. [CNS] Confirmatory tests for the adult brain death may include all of the following EXCEPT: Contrast angiography-blood flow. Magnetic resonance imaging-magnetic activity. Electroencephalography-electrical activity. Transcranial Doppler ultrasound-blood flow. 4. [PET] The concentration of glucose-6-phosphatase, an enzyme mediating dephosphorylation of FDG-6-phosphate, is low in most tumors EXCEPT: Ductal carcinoma. Hodgkin lymphoma. Lung adenocarcinoma. Hepatocellular carcinoma. 5. [CNS] The arterial Circle of Willis, also called Willis’ Circle, is a circle of arteries that supply blood to: The uterus. The liver. The spleen. The brain. 6. [Therapy] To reduce radiation exposure to the patient undergoing radioactive iodine (RAI) treatment, all of the following recommendations will be helpful EXCEPT: Patient should urinate frequently Patient should use antiperspirant medications Patient should be well hydrated Patient laxatives 7. [PET] The usefulness of F-18 FDG PET in infection imaging is based on the fact that granulocytes and macrophages in infectious foci: Have high mitotic rate Have high insulin production Have high glucose consumption Have short life span 8. [Therapy] The general pretreatment requirements for adult qualifying for therapy with I-131 metaiodobenzylguanidine (MIBG) include the following EXCEPT: Performing pulmonary function tests A diagnostic MIBG scan or previous posttreatment I-131 MIBG scan Blocking thyroid uptake of free radioiodine Reviewing potential interfering medications 9. [PET] With the administration of oral contrast media for integrated Positron Emission Tomography/Computed Tomography (PET/CT) studies, CT-derived attenuation values are: Not applicable Overestimated Not performed Underestimated 10. [PET] All of the following cellular mechanisms are responsible for malignant cells increased F-18 fluorodeoxyglucose accumulation EXCEPT: Increased membrane transporters. Low mitotic rate. Increased intracellular hexokinase. Low glucose-6-phosphatase. 11 out of 10 Time is Up! Time's up By Nasser AlMutairi|2022-05-03T13:57:10+03:00September 30th, 2021| Share This Post With Others! FacebookTwitterLinkedInWhatsAppPinterestEmail About the Author: Nasser AlMutairi Senior Nuclear Medicine Specialist at Hafar Al-Batin Central Hospital, Founder of NuclearMed Website. Member of SSNMMI Executive Committee. Leave a Reply Cancel reply
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