اختبار: وحدات و كميات الأشعة الأساسية A multiple-choice quiz consists of: 10 QuestionsQuestions are selected randomly from a collection of 18 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. Xe-133, used during a ventilation/perfusion (VQ) scan has a physical half-life of 5.3 days and biological half-life is 0.37 min. What is the effective half-life of Xe-133? 5 s 3.7 min 5.3 min 0.37 min 2. Which of the following is its effective half-life if an isotope has a physical half-life of 18 hours and biological half-life of 10 hours? 0.5 hours 6.4 hours 0.2 hours 1.8 hours 3. 650 Microcuries (uCi) is equal to? 65 curies (Ci) 0.000065 curies (Ci) 0.65 curies (Ci) 0.00065 curies (Ci) 4. 850 milligrays (mGy) are equal to? 85 rads 0.850 rad 85,000 rads 8,500,000 rads 5. A vial contains an unidentified radionuclide with an initial activity of 60 mCi at 6 p.m. Sunday. At 6 a.m. Monday, the activity decayed to 7.5 mCi. Which of the following is the physical half-life of this radionuclide in hours? 6 4 8 10 6. A radionuclide with a physical T% of 10 days is taken up by the liver and eliminated with a biological T% of 15 days. Which of the following is its effective T%? 10 days 6 days 25 days 2 days 7. How much activity will be remaining at 2:30 p.m. if the dose of Tc-99m methylene diphosphonate (MDP) is calibrated to contain 25 mCi at 12:00 p.m. on the same day? 18.7 mCi 15.7 mCi 17.3 mCi 19.5 mCi 8. The initial activity of an isotope is 180 mCi and its half-life is 6 hours. Which of the following number of the activity will be present after 2 days? 0.7 mCi 30 mCi 15 mCi 3.8 mCi 9. At the time of preparation, a macroaggregated albumin (MAA) kit contained 30.5 mCi of Tc-99m. How much activity will remain after 5 hours and 30 minutes? 10.5 mCi 7.2 mCi 16.2 mCi 18.5 mCi 10. 1 microcuries (uCi) is equal to: 1000 curies (Ci) 1000 millicurie (mCi) 1/100 millicurie (mCi) 1/1000 millicurie (mCi) 1 out of 10 Time is Up! Time's up بواسطة ناصر المطيري|2021-09-20T14:26:37+03:00أبريل 15th, 2021|السلامة من الإشعاع|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. منشورات متعلقة اختبار: الحماية من الأشعة اختبار: الحماية من الأشعة أبريل 15th, 2021 | لا توجد تعليقات اترك تعليقاًCancel reply
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