ASRT Mock 1
When a patient is treated with a source to axis distance (SAD) of 12 cm, what would the
source to surface distance (SSD) be? - answer88cm
If an orthogonal pair is taken with the first angle at 215 degrees, what would the second
angle be? - answer305 degrees
_________ is an external landmark often used when setting up whole brain treatments.
– answer EAM
A radiation therapist who is 37 years old should not have a lifetime effective dose
exceeding: - answer370 mSv
What is the Tolerance Dose for 5% risk at 5 years (TD 5/5) for the kidney? - answer23
Gy - 2300 cGy
What is the most common breast cancer diagnosis? - answer Infiltrating ductal
carcinoma
A whole body dose of 100-1000 cGy would cause symptoms from which syndrome? –
answer hematopoetic
What is the single most effective way of preventing the spread of infection? -
answerWashing your hands
Esophageal radiation field margins should include ___ above and below the tumor to
account for nodular drainage. - answer6 cm
As the field size increases, the percentage depth dose curve (PDD): - answerincreases
Which of the following is not part of the oral cavity? - answerbase of the tongue
The IMRT x-ray output consistency should be checked on a(n) __________ basis. -
answermonthly
A whole body dose of 1000-5000 cGy would result in what type of acute radiation
syndrome? - answergastrointestinal
215 monitor units (MU) will be delivered during a 315 degree arc. How many MUs per
degree will be delivered? - answer.68 mu/degree
A pituitary adenoma is a: - answerbenign tumor
, Thrombocytopenia is a condition in which the patient has a reduced number of: -
answerplatelets
The most common side effect of patients being treated with external beam radiation
therapy to the vagina is: - answerdyspareunia
Hounsfield units measure: - answerattenuation
According to the American Joint Committee on Cancer staging system, T1b glottic
cancer involves: - answerboth vocal cords
Which organization is responsible for establishing suggested dose limits for safe
practices within the United States? - answerNational Council on Radiation Protection
and Measurements (NCRP)
NRC (Nuclear Regulatory Commission) - answerregulates nuclear power industry,
issues licenses and approves design, construction and operation of nuclear power
plants
Areas where the dose equivalent exposure is 0.1 rem/week are classified as: -
answercontrolled areas
What is the Tolerance Dose for 5% risk at 5 years (TD 5/5) for the whole liver? -
answer30 Gy
A patient presenting with unilateral hearing loss and an enlarged cervical lymph node
should be evaluated for suspected lesion relating to which primary diagnosis: -
answernasopharyngeal
The most common histology for cancer of the brain is: - answerAstrocytoma
If the hinge angle of two radiation beams is 150 degrees, what should the wedge angle
be? - answer15 degrees
A keloid is a: - answerExcessive accumulation of scar tissue extending beyond the
original wound borders
A _________ can be used to compensate for an irregular skin surface. - answerbolus
When preforming time out procedures, patient identity can be confirmed with: -
answeran ID bracelet
What are the energy values for Cobalt-60 decay? - answer1.17 MeV and 1.33 MeV
When a patient is treated with a source to axis distance (SAD) of 12 cm, what would the
source to surface distance (SSD) be? - answer88cm
If an orthogonal pair is taken with the first angle at 215 degrees, what would the second
angle be? - answer305 degrees
_________ is an external landmark often used when setting up whole brain treatments.
– answer EAM
A radiation therapist who is 37 years old should not have a lifetime effective dose
exceeding: - answer370 mSv
What is the Tolerance Dose for 5% risk at 5 years (TD 5/5) for the kidney? - answer23
Gy - 2300 cGy
What is the most common breast cancer diagnosis? - answer Infiltrating ductal
carcinoma
A whole body dose of 100-1000 cGy would cause symptoms from which syndrome? –
answer hematopoetic
What is the single most effective way of preventing the spread of infection? -
answerWashing your hands
Esophageal radiation field margins should include ___ above and below the tumor to
account for nodular drainage. - answer6 cm
As the field size increases, the percentage depth dose curve (PDD): - answerincreases
Which of the following is not part of the oral cavity? - answerbase of the tongue
The IMRT x-ray output consistency should be checked on a(n) __________ basis. -
answermonthly
A whole body dose of 1000-5000 cGy would result in what type of acute radiation
syndrome? - answergastrointestinal
215 monitor units (MU) will be delivered during a 315 degree arc. How many MUs per
degree will be delivered? - answer.68 mu/degree
A pituitary adenoma is a: - answerbenign tumor
, Thrombocytopenia is a condition in which the patient has a reduced number of: -
answerplatelets
The most common side effect of patients being treated with external beam radiation
therapy to the vagina is: - answerdyspareunia
Hounsfield units measure: - answerattenuation
According to the American Joint Committee on Cancer staging system, T1b glottic
cancer involves: - answerboth vocal cords
Which organization is responsible for establishing suggested dose limits for safe
practices within the United States? - answerNational Council on Radiation Protection
and Measurements (NCRP)
NRC (Nuclear Regulatory Commission) - answerregulates nuclear power industry,
issues licenses and approves design, construction and operation of nuclear power
plants
Areas where the dose equivalent exposure is 0.1 rem/week are classified as: -
answercontrolled areas
What is the Tolerance Dose for 5% risk at 5 years (TD 5/5) for the whole liver? -
answer30 Gy
A patient presenting with unilateral hearing loss and an enlarged cervical lymph node
should be evaluated for suspected lesion relating to which primary diagnosis: -
answernasopharyngeal
The most common histology for cancer of the brain is: - answerAstrocytoma
If the hinge angle of two radiation beams is 150 degrees, what should the wedge angle
be? - answer15 degrees
A keloid is a: - answerExcessive accumulation of scar tissue extending beyond the
original wound borders
A _________ can be used to compensate for an irregular skin surface. - answerbolus
When preforming time out procedures, patient identity can be confirmed with: -
answeran ID bracelet
What are the energy values for Cobalt-60 decay? - answer1.17 MeV and 1.33 MeV
