Radt 1200 test 1 - Study guides, Class notes & Summaries

RADT 1200 Test 1 Questions with Correct Answers Patient dose for each exam varies because? - Answer--different equipment -differences in procedure -technical skills Amount of radiation received by patient may be expressed by? - Answer-1. Entrance Skin Exposure (ESE) 2. Bone Marrow dose 3. Gonadal dose And sometimes 4. Fetal dose (only in women) T or F- humans (can) control the amount of natural background radiation - Answer-false; cannot T or F- the number of medical procedures...

RADT 1200 chap 10 Test Questions with Correct Answers What supports the premise that "each pt should get the right imaging examination, at the right time, and with the right radiation dose" - Answer-FDA white paper What is a genetic (hereditary) effect - Answer-Mutagenesis (leads to abnormalities in new cells) What is the current method for controlling the risk of biological damage to radiation workers and the general public from radiation exposure - Answer-EfD Is the upper boun...

RADT 1200 Test Review Questions and Revised Answers All Correct The 1980 BEIR report revealed that the majority of stochastic effects and genetic effects at low dose levels from low-LET radiation appear to follow what type of curve? - Answer-linear quadratic non-threshold dose response curve The 1990 BEIR report suggested that radiation exposure and associated risk be represented by which curve? - Answer-linear nonthreshold The _____________ curve implies that the biological response t...

RADT 1200 Chapter 1 Test Questions and Answers All Correct What are the consequences of ionization in the human cell - Answer-- creation of unstable atoms -production of free electrons -production of low energy x-ray photons -creation of new biologic molecules -creation of highly reactive free molecules that are (poisonous to cell ) - injury to cell (abnormal or lose function) When is radiation exposure considered unnecessary - Answer-when radiation exposure does not benefit a pers...

RADT 1200 CH33 TEST QUESTIONS WITH ALL CORRECT ANSWERS The dose of x rays necessary to produce an erythema in ½ of those exposed is about: A. 1 Gy B. 2 Gy C. 5 Gy D. Over 8 Gy - Answer-C. 5Gy Which of the following is NOT an example of a manifest illness stage? A. Hematologic syndrome B. Gastrointestinal syndrome C. Latent injury syndrome D. Central nervous system syndrome - Answer-C. Latent injury syndrome Three to five days after receiving a dose of 10 Gy manifest illness s...

RADT 1200 Chapter 7 Test Questions and Answers All Correct What does molecular damage results from? - Answer-the formation of structurally changed molecules that cause injury cellular function The entire body process can be affected if a large amount of what is damaged? - Answer-somatic cells If germ cells are damaged, what can happen? - Answer-future generations can be affected leading to mutations What are the 2 classifications of ionizing radiation interaction? - Answer-indirec...