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. Which of the following is the unit of Absorbed Dose? Roentgen Gray Becquerel Curie 2. 1 microcuries (uCi) is equal to: 1/100 millicurie (mCi) 1000 curies (Ci) 1/1000 millicurie (mCi) 1000 millicurie (mCi) 3. 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 4. 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? 7.2 mCi 18.5 mCi 10.5 mCi 16.2 mCi 5. 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 6. 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 10 4 8 7. 850 milligrays (mGy) are equal to? 8,500,000 rads 85 rads 0.850 rad 85,000 rads 8. 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%? 6 days 2 days 25 days 10 days 9. What is the effective half-life of an isotope, that has a physical half-life of 18 hours and a biological half-life of 10 hours? 7.5 hours 2.5 hours 9.2 hours 6.4 hours 10. 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? 185 uCi 162 uCi 250 uCi 173 uCi 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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