C. RADIATION THERAPY

81. Which disease is often treated with radiation alone?

  1. Early-stage Hodgkin disease
  2. Early-stage breast cancer
  3. Sarcoma
  4. Non-small cell lung cancer

82. According to target theory, an indirect hit occurs when ionization takes place in the medium surrounding the molecular structures in the cell, causing:

  1. Free radical formation
  2. Breakage of the bond between deoxyribonucleic acid (DNA) chains
  3. Cross-linking of DNA chains
  4. Change or loss of base (thymine, adenine, guanine, or cytosine)

83. The dose rate of radiation refers to the rate at which a dose is delivered by a treatment machine or equipment. The term used to describe the treatment approach that takes the total dose of radiation and divides it into equal portions is:

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