Fractionation in Radiotherapy — Flashcards

Flashcard 1: The least radiosensitive phase of cell cycle is _____.

Answer: S

Flashcard 2: The least radiosensitive cell in the blood is the _____.

Answer: platelet

Flashcard 3: _____ radiation causes maximum damage to biological tissues.

Answer: Alpha

Flashcard 4: _____ effects of radiation do not occur below a threshold dose, and severity increases with increased dose

Answer: Deterministic

Flashcard 5: at >_____ rad, symptoms of radiation start appearing

Answer: 50

Extra: 

Flashcard 6: The most radiosensitive blood cell is _____ and least is platelets/ RBC.

Answer: lymphocytes

Flashcard 7: Most radiosensitive phase of cell cycle is _____ and least radiosensitive phase is late S phase.

Answer: G2-M

Flashcard 8: Most radiosensitive tissue in our body is _____ and least radiosensitive is nervous tissue.

Answer: bone marrow

Flashcard 9: Radiation doses greater than _____ cGy lead to osteosarcoma

Answer: 2500

Flashcard 10: Hematopoetic presentation of acute radiation syndrome occurs at _____ rads or higher

Answer: 70