A 55 year old woman diagnosed with ca cervix stage IIb is adviced for chemoradiation. Which of the following is true statement regarding radiation use ?
- Inverse square law:- Dose /Intensity of radiation is inversely propoional to the square of distance of source - Other options: If tissues with a rapid proliferation rate such as epithelium of the small intestine or oral cavity are irradiated, acute clinical symptoms develop within a few days to weeks The small bowel is paicularly vulnerable to acute early damage from radiation therapy Susceptibility of Selected Tissues to Radiation-Induced Cancer Susceptibility Tissues High Bone marrow, female breast, thyroid Moderate Bladder, colon, stomach, liver, ovary Low Bone, connective tissue, muscle, cervix, uterus, rectum
Dose/Intensity of radiation is inversely propoional to the square of distance of source
Rapidly proliferating cells are radioresistant
small blood vessels are radioresistant
small bowel is radioresistant
NEET Jan 2020