Questions and Answers A+ Guide
the most common histology for cancer of the brain is: - correct answers astrocytoma
the plane which divides the body into anterior and posterior portions is: - correct answers
the coronal plane
what is the TD 5/5 for one third of the brain? - correct answers 60 Gy
Clinically significant weight loss is defined as a patient losing ______ or more of their body
weight. - correct answers 10%
a treatment prescription must contain all of the following except for:
a. set up instructions
b. total dose
c. orientation of treatment fields
d. fractionation - correct answers set up instructions
Myelopathy is a result of which part of the body receiving more than its tolerance dose? -
correct answers the spinal cord
as the field size increases, the percent depth dose curve: - correct answers increases
Mycosis fungoides is the most common form of? - correct answers cutaneous T-cell
lymphoma
,Radiation Therapy Board Exam Review
Questions and Answers A+ Guide
which organization is responsible for establishing suggested dose limits for safe practices
within the United States? - correct answers National Council on Radiation Protection and
Measurements (NCRP)
The spinal cord is about 25cm shorter than the vertebral column, usually ending near the
level of: - correct answers L1-L2
Prophylactic cranial irradiation is indicated for which primary diagnosis? - correct answers
small cell carcinoma
In individuals with nasal cavity and paranasal sinus cancer, the most commonly involved
lymph node is the: - correct answers submandibular node
the three major pathways of lymphatic drainage of the breast are: - correct answers
internal mammary, transpectoral, and axillary
when treating a patient using the SSD, the field size is defined: - correct answers at mid-
plane and at the patients skin
the internal treatment volume (ITV) includes: - correct answers Clinical target volume
(CTV) and gross tumor volume (GTV)
which organization regulates the use of radioactive materials to ensure adequate
protection of public health and safety? - correct answers nuclear regulatory commission
(NRC)
a near miss in radiation therapy treatment delivery is defined as: - correct answers a
harmful event that was caught prior to the delivery of treatment
,Radiation Therapy Board Exam Review
Questions and Answers A+ Guide
Etiological factors associated with anal cancer are:
a. HPV
b. high fiber diet
c. low fiber diet
d. colitis - correct answers HPV
tumors arising from the mesenchymal cells are: - correct answers sarcomas
which of the following is not part of the oral cavity?
a. floor of the mouth
b. retromolar trigone
c. base of tongue
d. lower gingiva - correct answers base of the tongue
The Ann Arbor staging system is used for staging - correct answers Hodgkin's disease
when a patient is treated with a SAD of 12cm, what would the SSD be? - correct answers
100-12= 88cm
A ______ can be used to compensate for an irregular skin surface - correct answers bolus
Esophageal radiation field margins should include ___ above and below the tumor to
account for nodular drainage - correct answers 6 cm
, Radiation Therapy Board Exam Review
Questions and Answers A+ Guide
If a field needs to be shifted 1 cm posteriorly, how should the table be moved? - correct
answers 1 cm anteriorly
A QA level 1 action item would require - correct answers inspection, but treatment can
contribute
What is the TD 5/5 for the kidney? - correct answers 23 Gy
If an orthogonal pair is taken with the first angle at 215 degrees, what would the second
angle be? - correct answers 215 + 90= 305 degrees
tumor grade is determined by: - correct answers differentiation
The IMRT x-ray output consistency should be checked on a _____ basis - correct answers
monthly
screening for colorectal cancer includes: - correct answers a fecal occult blood test
(FOBT)
________ is an external landmark often used when setting up whole brain treatments -
correct answers the external acoustic meatus
forced shallow breathing can be accomplished with the ______ technique.
a. IMRT
b. 4D CT
c. Gating