Question

There are two cells, one with OER as 2.5 and other as 7. Which cell is more sensitive to radiation?

(a) The cell with OER 2.5

(b) The Cell with OER 7

(c) Both the cells

(d) Insufficient data

I had been asked this question by my college director while I was bunking the class.

This key question is from Radiation Therapy in division Radiation Therapy of Clinical Science

Answer 1

Right option is (a) The cell with OER 2.5

Best explanation: The cells that have a lower OER are more sensitive to radiation. This is because a higher amount of dosage is required to destroy the cell in hypoxic condition as compared to the amount of dosage required to do the same damage in oxygenated condition.