Test on The R's of Radiotherapy: Radiobiological Principles
The R's of Radiotherapy: Radiobiological Principles Explained
Test: Radiobiology
20 questions
Question 1: Single-site radiotherapy results in a greater potential for anti-tumour immune response compared to multiple-site radiotherapy.
A. Yes
B. No
Explanation: Multiple-site radiotherapy offers a greater potential for anti-tumour immune response from a diverse repertoire of infiltrating T-cells, while single-site radiotherapy provides some potential for this response.
Question 2: The typical duration of the M phase of the cell cycle is 4 hours.
A. Yes
B. No
Explanation: The study materials indicate that the typical duration of the M phase is 1 hour.
Question 3: Multi-fraction survival curves are always nonlinear.
A. Yes
B. No
Explanation: The study materials state that 'Multi-fraction survival curves can be considered linear.'
Question 4: Greater doses are necessary for tumor control when overall treatment time is longer, due to the need to compensate for increased repopulation.
A. Yes
B. No
Explanation: The study materials state that "With longer overall treatment time, greater doses are needed for tumour control, because more repopulation must be compensated for".
Question 5: There is a wide range of radiosensitivity among asynchronous cultures of human and rodent cell lines.
A. Yes
B. No
Explanation: Survival curves for asynchronous cultures of human and rodent cell lines show a wide range of radiosensitivity, with mouse EMT6 cells being among the most resistant and human neuroblastoma cell lines being among the most sensitive.