RAD 288Practice Test with Answers - RAD 288.

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1. What type of radiation below has the highest quality factor?  Alpha particle  Gamma rays  Low energy x-rays  Beta particle 2. What is the wavelength range for an x-ray photon? ... 10 to 20 A*  12 to 15 A  6 to 8 A*  .1 to .5 A* 3. Which photon has the shortest wavelength?  X-rays  Radio-waves  Visible light  Infrared 4. What happens when the photon is completely deposited into tissue?  Nothing  Photoelectric absorption  Compton scatter  Oxygen enhancement 5. Which of these has a high LET?  Alpha  Infrared  Visible light  Microwave 6. What happens at the cellular level when it receives O2?  No effect at all  Cells are more resistant to radiation  Increases its sensitivity  It becomes a radio-protecting chemical 7. Which of the following is classified as a reproductive (gem) cell?  Ova  Skin  Bone  Nerve 8. Which of the following example of a nitrogenous base?  Hormone  Adenine  Lipids  Stem cell 9. Which blood cell is classified as the MOST sensitive blood cell?  Erythrocyte  Lymphocyte  Leukocyte  Thrombocyte 10. What is the dose range needed for the GI syndrome?  100-1000 rads  1000-5000 rads  10,000 rads  50,000 rads 11. Which symptom below is NOT a part of the bone marrow syndrome?  Infection  Reduction of red and white blood cells  Staggering when walking  Blood clotting effect 12. Which cell is the MOST sensitive to ionizing radiation?  Reproductive cells  Nerve cell  Muscle cell  Fiber cell 13. Which cell is the most mature according to the laws of sensitivity?  Nerve cell  Intestinal crypt  Sperm cell  Lymphocyte 14. What instrument is used to detect the presence of radiation in the nuclear medicine department?  Film Badge  OSLD  Geiger-Muller Counter  TLD 15. What is the lethal dose 50/30 range in humans? [Show More]

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