RADT_152_Unit_1_Exam

RADT_152_Unit_1_Exam - RADT 152 Radiation Protection Unit 1...

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Unformatted text preview: RADT 152 Radiation Protection Unit 1 Exam Introduction to Radiation Protection 2 1.0 Introduction to Radiation Protection. Directions: 1. Write your name and the date on your Scantron form. Identify the subject as the course number (for example, RADT 101) along with the test number (for example, Unit 1). 2. For each of the questions below, select the best answer to the question. 3. Using a No. 2 pencil, fill in the appropriate answer on the answer sheet. 4. Erase unwanted answers completely. Questions with two or more filled in answer spaces are graded as incorrect. 5. Answer all questions. 6. You have a maximum 15 minutes to complete the following 25 questions. (Note this time factor approximates the amount of time you would be allowed to answer the same number of questions on the Registry examination in radiography) 1. Radiation that produces positively and negatively charged particles (ions) when passing through matter is known as. A. ionizing B. electromagnetic C. x-ray d. gamma e. beta 3 2. Which of the following is an example of radiant energy that can be controlled? A. B. C. D. E. 3. Effective measures employed by radiation workers to safeguard patients, personnel, and the general public from unnecessary exposure to ionizing radiation define: A. B. C. D. 4. Diagnostic efficacy Optimization Radiation protection The concept of equivalent dose Damage to living tissues of animals and humans exposed to radiation: A. B. C. D. E. 5. Natural radiation Background radiation Nuclear radiation Radiation from x-ray tube Solar radiation Background effect Biologic effect Somatic effect Genetic effect Natural effect When a patient may elect to assume the risk of exposure to ionizing radiation to obtain essential diagnostic medical information? A. B. C. D. E. When women elect to undergo screening mammography Only when somebody enters the x-ray department When using a CT scan for diagnostic efficacy When of patient is undergoing an ultrasound When a man being treated for prostate cancer via high absorbing energy waves 4 6. Which of the following describes occupational and no occupational dose limits? A. B. The upper boundary doses of nonionizing radiation that result in a negligible risk of both bodily injury and genetic damage. C. The upper boundary doses of ionizing radiation that result in a negligible risk of both bodily injury and genetic damage D. The upper boundary doses of ultrasonic wave that result in a negligible risk of both bodily injury and genetic damage. E. 7. The lower boundary doses of ionizing radiation that result in a negligible risk of both bodily injury and genetic damage None of the above. The term “ As low As Reasonably Achievable” (ALARA) is synonymous with the term: A. B. C. D. E. 8. Background equivalent radiation time (BERT) Organization for radiation protection (ORP). Optimization for radiation protection (ORP). Equivalent dose (Ht) Diagnostic efficacy (DE) When is it an important part of ensuring the highest quality of service? A. B. C. D. E. When imaging personnel keep exposure as high as achievable for better image quality When imaging personnel educate the patients about radiologic procedures. When referring physicians discontinue ordering imaging procedures When orders for imaging procedures are determined only by medical insurance companies When patient assume sole responsibility for ordering there own imagine procedures 5 9. Which of the following does not describe background equivalent radiation time (BERT)? A. B. C. D. E. 10. Which of the following is electromagnetic radiation that has a high enough frequency to transfer sufficient energy to remover electrons from atoms which they were attached? A. B. C. D. E. 11. Radio wave Microwave Visible light Ionization Electro wave Which of the following is amount of energy transferred to electrons by ionizing radiation? A. B. C. D. 12. Based on an annual U.S. population exposure of 3 millisievert per year (300 millirem per year). BERT does not imply radiation risk It emphasizes that radiation is an innate part of our environment The answer given in terms of BERT is easy for the patient to comprehend Based on an annual U.S. population exposure of 5 millisievert per year (500 millirem per year). Somatic dose Equivalent dose Effective dose Radiation dose What quantity attempts to take into account the variation in biologic harm that is produced by different types of radiation? A. B. C. D. Somatic dose Equivalent dose Effective dose Radiation dose 6 13. Which of the following is radiation damage to generations yet unborn? A. B. C. D. 14. Genetically or somatically, what can happen if excessive cellular damage occurs? 1. 2. 3. 4. 5. 15. Mutations Cataracts Leukemia Hyperemia Aplastic anemia A. B. C. D. E. 1, 2, 3, 1, 2, 2, 3, 4, 3, 4, 3 4 5 5 5 An equivalent dose as low as 0.25 Sv (25 rem) delivered to the whole body within a few days may cause which of the following? A. B. C. D. E. 16. Natural damage Biologic damage Somatic damage Genetic damage An increase in number of lymphocytes in the blood An increase in number of erythrocytes in the blood A decrease in number of lymphocytes in the blood The lymphocytes in the circulating blood will drop immediately to zero A large increase in the platelets Which of the following are components of background radiation? A B. C. D. Medical x-ray and cosmic radiation Radioactive elements in the human body and in the earth Radioactive elements in the human body and diagnostic x-ray machine Radioactive fallout and environs of atomic energy plants 7 17. What percentage of gross common exposure of human beings to natural background radiation comes from radon? A. B. C. D. E. 18. 29.5 mSv 2.95 mSv 35.5 mSv 3.00 mSv 355 mSv Which of the following is a source of artificial ionizing radiation? A. B. C. D. E. 21. Potassium-40 Carbon-14 Hydrogen-1 Hydrogen-3 Strontium-90 In total, natural background radiation in the United States results in an estimated average annual individual equivalent dose of approximately _____ mSv. A. B. C. D. E. 20. % % % % % Which of the following are not radioactive nuclides that exist in small quantities within the body? A. B. C. D. E. 19. 15 25 35 55 75 Cosmic radiation Air travel. Nuclear fuel for generation of power. Atmospheric fallout from nuclear weapons. Medical radiation. How much of mrem does the average person in the U.S. receive annually from manmade radiation? A. B. C. D. E. 25 35 45 55 65 mrem mrem mrem mrem mrem 8 22. Which of the following is a consumer product containing radioactive material? A. B. C. D. E. 23. Identify the amount of radiation one would be exposed to on a typical commercial flight. A. B. C. D. E. 24. 0.05 to 0.1mrem/hr 0.5 to 1 mrem/hr 1.5 to 5 mrem/hr 5 to 10 mrem/hr 10 to 50 mrem/hr Which of the following increases radiation exposure to both the patient and radiographer? A. B. C. D. E. 25. Airport surveillance systems. Early televisions Smoke detector alarms Static eliminators All of the above Producing optimal radiographs with the first exposure Efficient application of radiation protection measures on the part of the radiographer. The repetition of radiographs exposure because of technical error or carelessness Using appropriate radiation protection safety procedures The radiologist ordering limited radiograph examinations How the amount of radiation received by a patient may be indicated? A. B. C. D. E. Entrance skin exposures (ESE) Glandular dose Bone marrow dose Gonadal dose. All of the above ...
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This note was uploaded on 11/12/2011 for the course RADIOLOGY 152 taught by Professor Walters during the Spring '11 term at Boise State.

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