Question

7. Within the cell the most important critical target molecule for producing radiation damage that is lethal or mutagenic to cells is 8 & 9.For any type of imaging using ionizing forms of radiation, in general as the speed of image reception and diagnostic quality of the image necessitating a balance be maintained between exposure and diagnostic quality increases the amount of radiation exposure requirements. Act of 1990 requires the reporting of accidents due to malfunction from 10. The FDA any medical device including those using ionizing radiations and that "Potential danger" may also be reported anonymously to FDA. 11. significant long tem risks including radiation induced carcinogenesis that are not very well detected by personnel monitors and require that nuclear medical staff protect themselves by practicing excellent handling and administration techniques. exposures to radiopharmaceuticals and radioactive therapeutics may have 12. The type of DNA repair where single bases or DNA segments are selectively cut out by the action of special enzyme systems is called герair. 13. The enhancement of radiation damage in biological systems due to the presence of oxygen is called the 14., 15, 16, 17 & 18. The five (5) principal factors that affect the response of a tumor to radiation treatment and агe 19. One type of white blood cell is an exception to the law of Bergonie and Tribondeau and is quite sensitive to the effects of ionizing radiation to the extent that its reduction in the bloodstream following radiation exposure is sometimes used for dosimetry. This blood cell is the

Answer 1

7. Answer:

Within the cell the most important target molecule for radiation damage which an cause death or mutagenesis is DNA (Deoxy ribo nucleic acid) due to the formation of ROS (Reactive oxygen species which may damages the DNA strands)

8 and 9 Answers:

Decreases, Increases

10. Answer:

FDA Radiation Protection ACT 1990

11. Answer

Prolonged and Frequent

12 Answer:

DNA mismatch repair

13. Answers:

Reoxygenation

14, 15, 16, 17 & 18 Answers:

Biological factors like: Repair: repair of sublethal damage

Repopulation or regrowth

Redistribution of cells into Hypoxic cells (Hypoxia),

Proliferation,

Radio sensitivity

19 Answers:

Lymphocytes