ASRT 8&10 200 Comprehensive
Questions Test Skills
_________ helps with treatment decisions that are based on the histology of the disease and its extent.
Classification
Diagnosis
Grading
Staging - ✔ ✔ Staging
_________ is the thickness of a material required to reduce the air kerma of an x-ray or gamma ray by
50%.
Half-value layer
Tenth-value layer
Half-life
Minimum filtration equivalent - ✔ ✔ Half-value layer
__________ is the standard format used to transfer information between imaging systems, such as the
virtual simulation and treatment planning system.
RIS
PACS
DICOM
LAP - ✔ ✔ DICOM
___________ can be measured by using the distance between the chin and sternal notch for head
position.
,Table height
Chin extension
Lateral isocenter
Longitudinal point - ✔ ✔ Chin extension
Which of the following would NOT alert the radiation therapist that the linac is NOT ready to have the
beam go on?
Door interlock
Bolus not placed on patient
Electron cone improperly inserted
Treatment table out of tolerance - ✔ ✔ Bolus not placed on patient
Which photon energy would be best suited to treat a tumor deep within the body?
4 MV
6 MV
10 MV
18 MV - ✔ ✔ 18 MV
Which situation requires the therapist to press the emergency off button?
The patient coughs during treatment
The patient moves during treatment
The couch starts rising with no buttons depressed
A collision between table and gantry occurs - ✔ ✔ The couch starts rising with no buttons depressed
Which test is known to check MLC deviations in interleaf transmission?
Coupled precision
,Latter formation
Picket fence
Star gate - ✔ ✔ Picket fence
Which type of bone marrow describes the donor being that of an identical twin?
Allogeneic
Autologous
Syngeneic
Twinogeneic - ✔ ✔ Syngeneic
Which type of interaction produces radiation that is the greatest source of occupational exposure?
coherent
Compton
photoelectric
pair production - ✔ ✔ Compton
Which type of reaction to a contrast medium normally does NOT require medical attention?
pruritus
laryngeal edema
bronchospasm
significant hypotension - ✔ ✔ pruritus
Which type of treatment would benefit MOST from couch indexing?
Breast tangents
Whole brain
, Intensity modulated radiation therapy (IMRT) neck
Electron skin - ✔ ✔ Intensity modulated radiation therapy (IMRT) neck
____________ are imaging tools used for patient alignment, and are also used to define the CT scan
range.
immobilization devices
offsets
topograms
lasers - ✔ ✔ topograms
"Unlawful touching of a person without consent" is the definition of:
battery.
assault.
false imprisonment.
defamation. - ✔ ✔ battery.
A ________ is commonly used to abduct both arms above the patient's head for immobilization.
thermoplastic mold
belly board
wingboard
vacuum cushion - ✔ ✔ wingboard
A blood count indicates a white blood cell count (WBC) of 2.9. This is indicative of _________________.
anemia
leukopenia
thrombocytopenia
Questions Test Skills
_________ helps with treatment decisions that are based on the histology of the disease and its extent.
Classification
Diagnosis
Grading
Staging - ✔ ✔ Staging
_________ is the thickness of a material required to reduce the air kerma of an x-ray or gamma ray by
50%.
Half-value layer
Tenth-value layer
Half-life
Minimum filtration equivalent - ✔ ✔ Half-value layer
__________ is the standard format used to transfer information between imaging systems, such as the
virtual simulation and treatment planning system.
RIS
PACS
DICOM
LAP - ✔ ✔ DICOM
___________ can be measured by using the distance between the chin and sternal notch for head
position.
,Table height
Chin extension
Lateral isocenter
Longitudinal point - ✔ ✔ Chin extension
Which of the following would NOT alert the radiation therapist that the linac is NOT ready to have the
beam go on?
Door interlock
Bolus not placed on patient
Electron cone improperly inserted
Treatment table out of tolerance - ✔ ✔ Bolus not placed on patient
Which photon energy would be best suited to treat a tumor deep within the body?
4 MV
6 MV
10 MV
18 MV - ✔ ✔ 18 MV
Which situation requires the therapist to press the emergency off button?
The patient coughs during treatment
The patient moves during treatment
The couch starts rising with no buttons depressed
A collision between table and gantry occurs - ✔ ✔ The couch starts rising with no buttons depressed
Which test is known to check MLC deviations in interleaf transmission?
Coupled precision
,Latter formation
Picket fence
Star gate - ✔ ✔ Picket fence
Which type of bone marrow describes the donor being that of an identical twin?
Allogeneic
Autologous
Syngeneic
Twinogeneic - ✔ ✔ Syngeneic
Which type of interaction produces radiation that is the greatest source of occupational exposure?
coherent
Compton
photoelectric
pair production - ✔ ✔ Compton
Which type of reaction to a contrast medium normally does NOT require medical attention?
pruritus
laryngeal edema
bronchospasm
significant hypotension - ✔ ✔ pruritus
Which type of treatment would benefit MOST from couch indexing?
Breast tangents
Whole brain
, Intensity modulated radiation therapy (IMRT) neck
Electron skin - ✔ ✔ Intensity modulated radiation therapy (IMRT) neck
____________ are imaging tools used for patient alignment, and are also used to define the CT scan
range.
immobilization devices
offsets
topograms
lasers - ✔ ✔ topograms
"Unlawful touching of a person without consent" is the definition of:
battery.
assault.
false imprisonment.
defamation. - ✔ ✔ battery.
A ________ is commonly used to abduct both arms above the patient's head for immobilization.
thermoplastic mold
belly board
wingboard
vacuum cushion - ✔ ✔ wingboard
A blood count indicates a white blood cell count (WBC) of 2.9. This is indicative of _________________.
anemia
leukopenia
thrombocytopenia
