EXAMINATION 2026 QUESTIONS WITH
SOLUTIONS GRADED A+
◉What is internal radiation?. Answer: A radiation source placed
inside the body.
◉What is brachytherapy?. Answer: A type of internal radiation
where a sealed radioactive source is placed in or near the tumor.
◉What are common radiation reactions?. Answer: Skin changes,
fatigue, and site-specific symptoms.
◉What factors influence radiation toxicity?. Answer: Dose, location,
and patient condition.
◉What are the effects of bone marrow suppression due to
radiation?. Answer: Anemia, leukopenia, and thrombocytopenia.
◉What are some GI effects of radiation therapy?. Answer: Nausea,
vomiting, diarrhea, and mucositis.
, ◉What are long-term tissue effects of radiation therapy?. Answer:
Fibrosis, scarring, organ dysfunction, and increased risk of
secondary malignancies.
◉What is the definition of radiation therapy?. Answer: The use of
high-energy ionizing radiation to destroy cancer cells or shrink
tumors.
◉How often are external beam radiation treatments typically
administered?. Answer: Daily treatments over several weeks.
◉What are sealed sources in internal radiation?. Answer: Seeds,
needles, wires, or catheters placed in or near the tumor.
◉What are unsealed sources in internal radiation?. Answer:
Radioactive material administered orally, IV, or into the body cavity.
◉What are the three main principles of radiation safety?. Answer:
Time, distance, and shielding.
◉What is a common side effect of radiation therapy that affects
hair?. Answer: Alopecia (hair loss).