Oct 4, 2021 A multiple-choice quiz consists of: 10 QuestionsQuestions are selected randomly from a collection of 105 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. Radiation Safety Which of the following is a source of background radiation? Natural radioactive materials. Diagnostic radioactive nuclides. Medical radiography units. Cobalt radiotherapy units. None 2. Radiation Safety A body is placed 4 feet from a radiation source and received an exposure rate of 20 R/h. Which of the following is the distance required for the exposure rate of 5 R/h? 12 ft. 8 ft. 4 ft. 5 ft. None 3. Quantities and Units 650 Microcuries (uCi) is equal to? 0.000065 curies (Ci) 0.00065 curies (Ci) 65 curies (Ci) 0.65 curies (Ci) None 4. Physics Which of the following sentences correctly describes a positron? A particle having a mass equal to the proton but opposite charge A particle having a mass equal to the electron but opposite charge A particle having a mass equal to the electron and no charge A particle having a mass equal to the proton and no charge None 5. Quality Control Which of the following quality control procedures is NOT performed to ensure proper operation of the survey meter? Accuracy Battery check Calibration Sealed source check None 6. Quality Control All of the following single photon emission computed tomography (SPECT) quality control procedures can be performed by the technologist EXCEPT: Center of rotation (COR) calibration SPECT phantom Multiple head registration (MHR) validation Uniformity correction matrix None 7. Radiation Safety Which of the following is the first decay product of radium? Caesium Radon X-Ray Strontium None 8. Physics Radioactive decay is the process by which an unstable atomic nucleus loses energy by emitting ionizing radiation. The emission is described as spontaneous meaning: The nucleus decays without collision with another particle or atom The nucleus decays after collision with another particle or atom The nucleus decays without collision with shielding material The nucleus decays after collision with shielding material None 9. Radiation Safety A radioactive source produces exposure of 30 millirem per hour (mR/h) at 2-m distance. If the distance is increased to 5-m what is the new exposure rate? 6.1 mR/h 5.6 mR/h 4.8 mR/h 5.1 mR/h None 10. Radiation Safety Which of the following standard myocardial perfusion protocols deliver the highest effective dose to the patient? Tc-99m Sestamibi 2 day protocol. Dual isotope Tl-201 and Tc-99m Sestamibi same day protocol. F-18 fluorodeoxyglucose protocol. Tl-201 stress-reinjection protocol. None 1 out of 10 Time's upTime is Up! بواسطة ناصر المطيري|2021-09-30T11:15:34+03:00سبتمبر 30th, 2021|لا توجد تعليقات شارك هذه الصفحة, واترك رأيك حول الموضوع باستخدام وسيلة التواصل التي تناسبك FacebookXLinkedInWhatsAppPinterestEmail عن: ناصر المطيري كبير أخصائيي الطب النووي في مستشفى حفر الباطن المركزي و مؤسس موقع نيوكليرمد. اضف تعليقا إلغاء الردتعليق Δ
اضف تعليقا