How many fractions would be recorded for a total of 50 treatments delivered in a hyperfractionated regimen?

• A. 25
• B. 50
• C. 10
• D. 100

Answer: (B)

In a hyperfractionated radiation therapy regimen, patients receive multiple smaller doses of radiation per day, often leading to a higher total number of treatment sessions. The term "fractions" refers to the individual doses of radiation that are delivered.

In this case, the question specifies that there are a total of 50 treatments delivered. Since each treatment corresponds to a fraction, the total number of fractions recorded would be equal to the number of treatments given. Therefore, for 50 treatments delivered in a hyperfractionated regimen, 50 fractions are recorded. This aligns with standard practices in radiation oncology where each treatment session is counted as a separate fraction, regardless of the daily dosage schedule.