RADIATION THERAPY BOARD
REVIEW EXAM
An immobilization device that is made of foaming agents is known as?
a. Alpha cradles
b. Vac-Lok
c. Aquaplast
d. Cerrobend - Correct Answers -a. Alpha cradles
Comparing CBCT images to the CT simulation images and making adjustments is
known as?
a. Registration
b. Representation
c. Rendering
d. Recording - Correct Answers -a. Registration
If the radiation worker is expected to receive ______ of effective dose, they should be
monitored.
a. 10%
b. 20%
c. 30%
d. 40% - Correct Answers -a. 10%
Which type of leukemia does NOT use bone marrow transplants as a form of treatment?
a. ALL
b. AML
c. CLL
d. CML - Correct Answers -c. CLL
Which of the following is NOT assessed during a complete blood count blood study?
a. Plasma
b. Hemoglobin
c. Hematocrit
d. Glucose - Correct Answers -d. Glucose
Which of the following is NOT a primary component of Cerrobend?
a. Lead
b. Tin
c. Bismuth
,d. Cerium - Correct Answers -d. Cerium
Brachytherapy is used for?
a. Short distance radiation therapy
b. External beam radiation therapy
c. Extended distance radiation therapy
d. Stereotactic radiation therapy - Correct Answers -a. Short distance radiation therapy
A patient is receiving arc therapy for 27 treatments. The total dose is 54 Gy, with a daily
dose of 200 cGy. The arc will deliver 250 MU. The gantry is moving 360 degrees.
Calculate the arc speed.
a. 0.56 degrees/MU
b. 0.69 degrees/MU
c. 1.44 degrees/MU
d. 1.80 degrees/MU - Correct Answers -c. 1.44 degrees/MU
The legal doctrine that states the employer is liable for the employee's negligence is
known as:
a. Respondeat superior
b. Res ipsa loquitur
c. Tort
d. Res ipsa superior - Correct Answers -a. Respondeat superior
If a lymphoma spreads in a random pattern, it is most likely:
a. Hodgkin's
b. Non-Hodgkin's
c. Chronic
d. Acute - Correct Answers -b. Non-Hodgkin's
What is the tolerance dose to 1/3 of the kidney according to Emami et al.?
a. 2300 cGy
b. 3000 cGy
c. 4500 cGy
d. 5000 cGy - Correct Answers -a. 2300 cGy
What is the most common type of brain tumors?
a. Astrocytoma
b. Medulloblastoma
c. Glioblastoma multiforme
d. Metastatic tumors - Correct Answers -d. Metastatic tumors
Radiation treatments that utilize wedges for optimal treatment should be
billed as:
a. Complex simulation
b. Simple simulation
c. Complex treatment
,d. Simple treatment - Correct Answers -c. Complex treatment
Machines with energy ranges of 50-150 kV are known as:
a. Linear accelerators
b. Orthovolage
c. Superficial
d. Cyclotron - Correct Answers -c. Superficial
Parallel opposed fields have a hinge angle of:
a. 45 degrees
b. 90 degrees
c. 180 degrees
d. 360 degrees - Correct Answers -c. 180 degrees
Terrestrial radiation is an example of?
a. Gamma Rays
b. Natural background radiation
c. Alpha particles
d. Beta particles - Correct Answers -b. Natural background radiation
All of the following are environmental factors that can cause nosocomial
infections EXCEPT:
a. Carpeting
b. Plants
c. Temperature
d. Asepsis - Correct Answers -d. Asepsis
The gantry, collimator and treatment couch all rotate around the:
a. Central axis
b. Target
c. Isocenter
d. Past point - Correct Answers -c. Isocenter
What is the most common type of skin cancer?
a. Squamous cell carcinoma
b. Melanoma
c. Basal cell carcinoma
d. Kaposi's sarcoma - Correct Answers -c. Basal cell carcinoma
The portion of the tumor that can be seen or palpated is?
a. GTV
b. PTV
c. ITV
d. CTV - Correct Answers -a. GTV
If exposed to radiation during the first 10 days of gestation, what is the
, most common effect?
a. Organogenesis
b. Microcephaly
c. Skeletal abnormalities
d. Prenatal death - Correct Answers -d. Prenatal death
What is true about hand blocks and cast blocks?
a. Cast blocks are cut to match the angle of the photon beam to reduce penumbra
b. Hand blocks are custom for each patient
c. Cast blocks can have 7.5% transmission
d. A positive block shields the periphery of the radiation field - Correct Answers -a. Cast
blocks are cut to match the angle of the photon beam to reduce penumbra
What is the normal range for white blood cells?
a. 12.0 - 17.5 g/dL
b. 3.5 - 10.5 billion cells/L
c. 150,000 - 450,000/mcL
d. 3.90 - 5.70 million/mcL - Correct Answers -b. 3.5 - 10.5 billion cells/L
Which of the following would give the doctor permission to perform a
procedure, such as radiation therapy?
a. Informed Consent
b. Patient Bill of Rights
c. Respondeat Superior
d. Res Ipsa Loquitur - Correct Answers -a. Informed Consent
What is the dmax for a 6 MV beam?
a. 1.5 cm
b. 2.5 cm
c. 3.0 cm
d. 3.2 cm - Correct Answers -a. 1.5 cm
Which lymph node is located below the mastoid tip and is involved in
many head and neck cancers?
a. Jugulodigastric
b. Obturator
c. Mesenteric
d. Iliac - Correct Answers -a. Jugulodigastric
What device is used to spread the beam of electrons when utilizing electron therapy?
a. Bending magnet
b. Electron gun
c. Scattering foil
d. Flattening filter - Correct Answers -c. Scattering foil
The distance from the source of radiation to the isocenter is known as:
REVIEW EXAM
An immobilization device that is made of foaming agents is known as?
a. Alpha cradles
b. Vac-Lok
c. Aquaplast
d. Cerrobend - Correct Answers -a. Alpha cradles
Comparing CBCT images to the CT simulation images and making adjustments is
known as?
a. Registration
b. Representation
c. Rendering
d. Recording - Correct Answers -a. Registration
If the radiation worker is expected to receive ______ of effective dose, they should be
monitored.
a. 10%
b. 20%
c. 30%
d. 40% - Correct Answers -a. 10%
Which type of leukemia does NOT use bone marrow transplants as a form of treatment?
a. ALL
b. AML
c. CLL
d. CML - Correct Answers -c. CLL
Which of the following is NOT assessed during a complete blood count blood study?
a. Plasma
b. Hemoglobin
c. Hematocrit
d. Glucose - Correct Answers -d. Glucose
Which of the following is NOT a primary component of Cerrobend?
a. Lead
b. Tin
c. Bismuth
,d. Cerium - Correct Answers -d. Cerium
Brachytherapy is used for?
a. Short distance radiation therapy
b. External beam radiation therapy
c. Extended distance radiation therapy
d. Stereotactic radiation therapy - Correct Answers -a. Short distance radiation therapy
A patient is receiving arc therapy for 27 treatments. The total dose is 54 Gy, with a daily
dose of 200 cGy. The arc will deliver 250 MU. The gantry is moving 360 degrees.
Calculate the arc speed.
a. 0.56 degrees/MU
b. 0.69 degrees/MU
c. 1.44 degrees/MU
d. 1.80 degrees/MU - Correct Answers -c. 1.44 degrees/MU
The legal doctrine that states the employer is liable for the employee's negligence is
known as:
a. Respondeat superior
b. Res ipsa loquitur
c. Tort
d. Res ipsa superior - Correct Answers -a. Respondeat superior
If a lymphoma spreads in a random pattern, it is most likely:
a. Hodgkin's
b. Non-Hodgkin's
c. Chronic
d. Acute - Correct Answers -b. Non-Hodgkin's
What is the tolerance dose to 1/3 of the kidney according to Emami et al.?
a. 2300 cGy
b. 3000 cGy
c. 4500 cGy
d. 5000 cGy - Correct Answers -a. 2300 cGy
What is the most common type of brain tumors?
a. Astrocytoma
b. Medulloblastoma
c. Glioblastoma multiforme
d. Metastatic tumors - Correct Answers -d. Metastatic tumors
Radiation treatments that utilize wedges for optimal treatment should be
billed as:
a. Complex simulation
b. Simple simulation
c. Complex treatment
,d. Simple treatment - Correct Answers -c. Complex treatment
Machines with energy ranges of 50-150 kV are known as:
a. Linear accelerators
b. Orthovolage
c. Superficial
d. Cyclotron - Correct Answers -c. Superficial
Parallel opposed fields have a hinge angle of:
a. 45 degrees
b. 90 degrees
c. 180 degrees
d. 360 degrees - Correct Answers -c. 180 degrees
Terrestrial radiation is an example of?
a. Gamma Rays
b. Natural background radiation
c. Alpha particles
d. Beta particles - Correct Answers -b. Natural background radiation
All of the following are environmental factors that can cause nosocomial
infections EXCEPT:
a. Carpeting
b. Plants
c. Temperature
d. Asepsis - Correct Answers -d. Asepsis
The gantry, collimator and treatment couch all rotate around the:
a. Central axis
b. Target
c. Isocenter
d. Past point - Correct Answers -c. Isocenter
What is the most common type of skin cancer?
a. Squamous cell carcinoma
b. Melanoma
c. Basal cell carcinoma
d. Kaposi's sarcoma - Correct Answers -c. Basal cell carcinoma
The portion of the tumor that can be seen or palpated is?
a. GTV
b. PTV
c. ITV
d. CTV - Correct Answers -a. GTV
If exposed to radiation during the first 10 days of gestation, what is the
, most common effect?
a. Organogenesis
b. Microcephaly
c. Skeletal abnormalities
d. Prenatal death - Correct Answers -d. Prenatal death
What is true about hand blocks and cast blocks?
a. Cast blocks are cut to match the angle of the photon beam to reduce penumbra
b. Hand blocks are custom for each patient
c. Cast blocks can have 7.5% transmission
d. A positive block shields the periphery of the radiation field - Correct Answers -a. Cast
blocks are cut to match the angle of the photon beam to reduce penumbra
What is the normal range for white blood cells?
a. 12.0 - 17.5 g/dL
b. 3.5 - 10.5 billion cells/L
c. 150,000 - 450,000/mcL
d. 3.90 - 5.70 million/mcL - Correct Answers -b. 3.5 - 10.5 billion cells/L
Which of the following would give the doctor permission to perform a
procedure, such as radiation therapy?
a. Informed Consent
b. Patient Bill of Rights
c. Respondeat Superior
d. Res Ipsa Loquitur - Correct Answers -a. Informed Consent
What is the dmax for a 6 MV beam?
a. 1.5 cm
b. 2.5 cm
c. 3.0 cm
d. 3.2 cm - Correct Answers -a. 1.5 cm
Which lymph node is located below the mastoid tip and is involved in
many head and neck cancers?
a. Jugulodigastric
b. Obturator
c. Mesenteric
d. Iliac - Correct Answers -a. Jugulodigastric
What device is used to spread the beam of electrons when utilizing electron therapy?
a. Bending magnet
b. Electron gun
c. Scattering foil
d. Flattening filter - Correct Answers -c. Scattering foil
The distance from the source of radiation to the isocenter is known as:
