Question

A cancer patient undergoing radiotherapy is given a dose of 1.8 to 2 Gy once daily for 5 days per week for a duration of 6 to 8 weeks. What is this type of radiotherapy called?

• A. Regular Fractionated radiotherapy
• B. Hyper Fractionated radiotherapy
• C. Accelerated Fractionated radiotherapy
• D. Brachytherapy

Hint:

Fractionation allows for better sparing of healthy tissues by allowing time for their repair between doses. Most common cancer treatments use regular fractionated radiotherapy.

Answer 1

The Correct Option is A

In radiotherapy, the term "fractionation" refers to the practice of dividing the total dose of radiation into smaller doses, called fractions, which are administered over a period of time. This is done to minimize damage to healthy tissues while delivering effective treatment to the tumor. 
Regular Fractionated radiotherapy involves giving radiation doses typically ranging from 1.8 to 2 Gy per day, 5 days a week, for 6 to 8 weeks. This method is used to treat most cancers and allows normal tissue to recover between treatments. 
Hyper Fractionated radiotherapy delivers smaller doses of radiation multiple times per day but at a lower overall total dose. 
Accelerated Fractionated radiotherapy involves increasing the frequency of radiation delivery, shortening the overall treatment time (e.g., delivering the same total dose in fewer weeks). 
Brachytherapy is a form of radiotherapy where radiation sources are placed directly inside or very close to the tumor.

Thus, the correct answer is Regular Fractionated radiotherapy.