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. Increasing the thickness of the scintillation detector will result in the detector:Decreased and decreased resolutionIncreased sensitivity and decreased resolutionIncreased sensitivity and increased resolutionDecreased and increased resolution2. 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:Dynamic scanningPlanar imagingDual phase scanningSPECT imaging3. The quality control procedure known as survey meter calibration is usually performed by:The radiation safety officerThe technologistThe lead technologistThe physicist4. The dose calibrator’s ability to measure accurately a range of low-activity doses to high-activity doses is called:LinearityGeometryConstancyAccuracy5. If generator elute contains 635 mCi of Tc-99m, what is the maximum amount of Mo-99 allowed? (0.15 uCi Mo-99 per mCi Tc-99m)95.3 uCi0.15 mCi64.2 uCi0.54 uCi6. When tested Tc-99m sulfur colloid kit with TLC for free Tc-99m, the technologist noted: strip with free Tc-99m migrated to the solvent front reads 650 cpm, and strip containing Tc-99m sulfur colloid remaining at the point of origin reads 18350 cpm. What is the radiopharmaceutical impurity of this sulfur colloid kit?97%5%3%95%7. 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 width2.5, 3, 4, and 4.5 mm in width2, 2.5, 3, and 4 mm in width3, 4, 5, and 6 mm in width8. Calibration, sensitivity/constancy, efficiency, chi-square, and energy resolution are quality control procedures performed to ensure proper operation of the:Well counter and uptake probeSurvey meterGamma-cameraDose calibrator9. If expected value of the long-lived source is 120 mCi and actual reading obtained from dose calibrator is 122 mCi, what is the percentage error of that reading?+ 2.0- 1.7- 2.0+ 1.710. Which of the following is a gas-filled radiation survey instrument?Geiger-muller counters.Thermoluminescent dosimeter (TLD).Pocket ionization chamber.Optically stimulated luminescence (OSL) dosimeter.11 out of 10 Time is Up! Time's up By Nasser AlMutairi|2021-03-25T11:27:42+03:00March 25th, 2021| Share This Post With Others! FacebookTwitterLinkedInWhatsAppPinterestEmail About the Author: Nasser AlMutairi Nuclear Medicine Specialist at Hafr Al-Batin Central Hospital, developer and administrator of NuclearMed Website. Leave a Reply Cancel reply
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