Radiation Therapy Board Review 2026 NEWEST EXAM COMPLETE 200 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) ALREADY GRADED A+ BRAND NEW!!

Radiation Therapy Board Review 2026 NEWEST
EXAM COMPLETE 200 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+ BRAND
NEW!!
____ work(s) best with sparsely ionizing radiation by scavenging for free radicals.


A. Radiosensitizers

B. Radioprotectors

C. Oxygen

D. RBE - CORRECT ANSWER: B. Radioprotectors



#55 The DRR on the back of this card is likely an initial treatment field for Cancer of the:


A. Nasopharynx

B. Base of tongue

C. Oropharynx

D. Hypopharynx - CORRECT ANSWER:



#57 The DRR on the back of this card is likely an initial treatment field for Cancer of the:


A. Wilm's tumor

B. Ovarian cancer

C. Seminoma

D. Hodgkin's lymphoma - CORRECT ANSWER:

,#59 The DRR on the back of this card is likely an initial treatment field for Cancer of the:



A. Hypopharynx

B. Nasopharynx
C. Base of tongue

D. Supraglotic larynx - CORRECT ANSWER:



#61 The DRR on the back of this card is likely an initial treatment field for Cancer of the:



A. Ovarian cancer

B. Hodgkin's disease

C. Seminoma
D. Wilm's Tumor - CORRECT ANSWER:



#63 The pea shaped blocks in the DRR on the back of this card are placed to protect the:



A. Liver

B. Small bowel

C. Colon flexures
D. Kidneys - CORRECT ANSWER:



#65 According to the dose volume histogram on the back of this card, 50% of the GTV receives:



A. 4000 cGy

B. 4100 cGy

C. 4250 cGy
D. 4500 cGy - CORRECT ANSWER:

,#65 According to the dose volume histogram on the back of this card, the whole heart receives:



A. 0 cGy
B. 250 cGy

C. 1000 cGy

D. 1400 cGy - CORRECT ANSWER:



#69 According to the treatment plan isodose on the back of this card, which field requires a
wedge:



A. Right lateral

B. Left lateral

C. Anterior
D. Posterior - CORRECT ANSWER:



#71 The isodose distribution shown on the back of this card is for what beam arrangement?



A. 270 degree arc

B. 360 degree arc

C. 3 field
D. 4 field box - CORRECT ANSWER:



#134 answer:



D. 1.006

, Interpolate:



Take the average between 10 cm square at 4 cm depth and 12 cm square at 5 cm depth.


Therefore:



10 cm square at 4 cm depth = 1.009

12 cm square at 5 cm depth = 1.002



So:



1.009 + 1.002 = 2.011


2.011/2 = 1.0055 = 1.006 - CORRECT ANSWER: #134 answer:



D. 1.006



Interpolate:


Take the average between 10 cm square at 4 cm depth and 12 cm square at 5 cm depth.



Therefore:



10 cm square at 4 cm depth = 1.009

12 cm square at 5 cm depth = 1.002


So: