Quiz: Quality Control A multiple-choice quiz consists of: 10 QuestionsQuestions are selected randomly from a collection of 27 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 (Optional) 1. The center of rotation (COR) of gamma-cameras is a key quality control procedure performed to assess capability of the nuclear medicine cameras to perform: SPECT imaging Dynamic scanning Dual phase scanning Planar imaging 2. Co-57, Ge-68, and Ba-133 are sometimes called “mock” isotopes. Which of the following trios of isotopes do they imitate? Xe-133, Ga-67, Sm-153 Tc-99m, F-18, I-131 Tc-99m, I-131, Co-60 Co-60, Xe-133, F-18 3. Well-counter calibration data of a positron emission tomography (PET) scanner are applied for: Energy window calibrations. Image reconstruction. Attenuation correction. Standardized uptake value (SUV) calculation. 4. Spatial resolution and spatial linearity of a gamma-camera is assessed with a 4-quadrant bar phantom which consists of four sectors of lead bars and intervening plastic strips: 1, 2, 3, and 4 mm in width 3, 4, 5, and 6 mm in width 2.5, 3, 4, and 4.5 mm in width 2, 2.5, 3, and 4 mm in width 5. Increasing the thickness of the scintillation detector will result in the detector: Increased sensitivity and decreased resolution Increased sensitivity and increased resolution Decreased and increased resolution Decreased and decreased resolution 6. The shield and the decay method are two different approaches to evaluate: Effective dose measurement Dose calibrator linearity Half-value layer thickness Gamma Camera linearity 7. When performing daily intrinsic floods, a point source of Tc-99m is placed five crystal dimensions away and centered over the detector. A point source should produce a measured counting rate not greater than: 35,000 cps 5,000 cps 15,000 cps 25,000 cps 8. The quality control procedure known as survey meter calibration is usually performed by: The radiation safety officer The lead technologist The technologist The physicist 9. Which of the following is a gas-filled radiation survey instrument? Geiger-muller counters. Pocket ionization chamber. Optically stimulated luminescence (OSL) dosimeter. Thermoluminescent dosimeter (TLD). 10. The blank scan is performed daily on Positron Emission Tomography (PET) scanners using a Ge-68 transmission source. The term blank scan reflects: The absence of technologist. The absence of any material in the field of view (FOV). The absence of emission data. The absence of patient. 1 out of 10 Time's upTime is Up! By Nasser AlMutairi|2021-09-20T13:17:08+03:00April 15th, 2021|Quality Control| Share This Post With Others! FacebookXLinkedInWhatsAppPinterestEmail About the Author: Nasser AlMutairi Senior Nuclear Medicine Specialist at Hafar Al-Batin Central Hospital, Founder of NuclearMed Website. Leave a ReplyCancel reply
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