Which of the following elements is obsolete in radiotherapy
Correct Answer: Radium 226
Description: Radium needles that were once implanted into tumours as a cancer treatment are now obsolete and constitute a radioactive waste problem, as their half-life is approximately 1600 years.
"Radioisotopes may be naturally occurring, such as radium - 226 (226 Ra)' which is now seldom used in radiotherapy".
Category:
Radiology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now