Review Questions for Tuesday April 6, 2010

Radiotherapy examination content specifications can be found on the ARRT site.

Topic: Treatment

1. A patient is prescribed a dose of 4,5oo cGy over 25 fractions. The daily fractionation of 18o cGy is supposed to be delivered at 100cm SSD. What is the patient’s total dose if patient is treated at 90 cm SSD?

A. 3,655 cGy
B. 4,755 cGy
C. 5,555 cGy
D. 6,455 cGy


Topic: Anatomy - Spine

2. How many vertebra are present in the thoracic spine?

A. 5 vertebrae
B. 7 vertebrae
C. 9 vertebrae
D. 12 vertebrae


Topic: Treatment Planning

3. What is the equivalent square (EqSq) of a rectangular field measuring 8cm by 15cm?

A. 9.23 cm
B. 10.43 cm
C. 11.20 cm
D. 12.46 cm

Check your answers here