Radiation Quantities and Units 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. 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? 17.3 mCi 19.5 mCi 15.7 mCi 18.7 mCi 2. 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%? 2 days 25 days 10 days 6 days 3. 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? 30 mCi 3.8 mCi 0.7 mCi 15 mCi 4. 650 Microcuries (uCi) is equal to? 0.65 curies (Ci) 65 curies (Ci) 0.000065 curies (Ci) 0.00065 curies (Ci) 5. 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? 16.2 mCi 7.2 mCi 18.5 mCi 10.5 mCi 6. If 300 uCi of I-123 is used for an adult dose, what is the pediatric dose according to Young’s formula for a child who is 14 years old and weighs 30 kg? 173 uCi 250 uCi 185 uCi 162 uCi 7. 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? 3.7 min 0.37 min 5.3 min 5 s 8. 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? 6.4 hours 0.2 hours 0.5 hours 1.8 hours 9. 3.4 curies (Ci) is equal to: 3,400,000 microcuries (uCi) 0.0000034 microcurie (uCi) 3,400 microcuries (uCi) 0.0034 microcurie (uCi) 10. 850 milligrays (mGy) are equal to? 85,000 rads 0.850 rad 8,500,000 rads 85 rads 1 out of 10 Time's upTime is Up! By Nasser AlMutairi|2021-03-25T12:42:27+03:00March 25th, 2021| 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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