This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
[{'content': '8000 rads dosage in Cancer cervix is given to - \nSelect and explain. \nA. Point A, B. Point B, C. Side walls of pelvis, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans- A a. External beam via cobalt or linear accelerator & brachytherapy (e.g. Radium, cobalt or cesium) are used in the treatment of carcinoma cervix. b. The radium dosage is calculated with respect to the amount of irradiation received at 2 theoretical points a & b. c. Point a lies 2cm above & 2cm lateral to the base of the radium tube in the cervical canal. It approximates to the position in the pelvis where the uterine artery & ureter cross. d. Point b lies 3cm lateral to point a & roughly corresponds to the position of obturator nodes. e. 8000 rads is the dosage given to point a in cancer cervix. f. The manchester method of radiotherapy for a ca cervix is a variation of the stockholm technique & uses rubber avoids loaded with radium in plate of the platinum boxes for vaginal vault.', 'role': 'assistant'}]