ASRT STUDY QUESTIONS
The true extent and location of the tumor is identified as the ____. - answer Clinical
tumor volume
The primary purpose of the record and verify system: - answer Compare treatment plan
parameters to actual values in treatment room
EPIDS: - answer- Sometimes called kV imaging
- Mounted opposite of the treatment gantry
- Convert x-ray information to digital information
A ____ dosimeter response is almost independent of energy in the mega voltage range
of photon and electron beams. - answerTLD
Dose-volume histograms represent which of the following? - answer- Volume of an
organ
- Dose received by the organ
Which brain structure has a space that allows cerebral spinal fluid to flow and contains
the brains major arteries? - answerSubarachnoid space
The administration of a radioactive drug via the wrong route is an example of a: -
answerMedical event
The concept that patients are treated as individuals and informed about procedures to
facilitate appropriate decisions. - answerAutonomy
2 types of microwave power sources used in linear accelerators: - answerKlystron
Magnetron
An example of a condition that droplet precautions would be applied - answerInfluenza
Tumors arising from the mesenchymal cells: - answerSarcomas
Hodgkin's disease staging system: - answerAnn Arbor
After total body exposure to radiation, the time when the patient has no symptoms is
referred to as: - answerLatent phase
, At the field size increases, the PDD curve: - answerIncrease
What is the tolerance dose for 5% risk at 5 years (TD 5/5) for 1/3 of the brain? -
answer60 Gy
A radiation therapist who is 37 years old should not have a lifetime dose exceeding: -
answer370 mSv
Screening for colorectal cancer includes: - answerFecal occult blood test
A patient presenting with unilateral hearing loss and enlarged cervical lymph node
should be evaluated for suspected lesion relating to which primary diagnosis: -
answerNasopharyngeal
What is the TD 5/5 for the kidneys? - answer23 Gy
Radiolucent contrast agents: - answerAppear dark on radiographs
The IMRT x-ray output consistency should be checked on a ____ basis. -
answerMonthly
A whole body dose of 100-1000 cGy would cause symptoms form which syndrome? -
answerHematopoietic
T1b glottic cancer involves: - answerBoth vocal cords
In individuals with nasal cavity and paranasal sinus cancer, the most commonly
involved lymph node is the: - answerSubmandibular node
Hounsfield units measure: - answerAttenuation
The most common histology for cancer of the brain is: - answerAstrocytoma
The intensity of a photon beam decreases rapidly with increasing distance because of: -
answerInverse square law
Tumor grade is determined by: - answerDifferentiation
Tumor stage is determined by: - answerSize, extent, and lymph node involvement
The 3 major pathways of lymph drainage of the breast are: - answerInternal mammary
Transpectoral (drain to superclav)
Axillary
The true extent and location of the tumor is identified as the ____. - answer Clinical
tumor volume
The primary purpose of the record and verify system: - answer Compare treatment plan
parameters to actual values in treatment room
EPIDS: - answer- Sometimes called kV imaging
- Mounted opposite of the treatment gantry
- Convert x-ray information to digital information
A ____ dosimeter response is almost independent of energy in the mega voltage range
of photon and electron beams. - answerTLD
Dose-volume histograms represent which of the following? - answer- Volume of an
organ
- Dose received by the organ
Which brain structure has a space that allows cerebral spinal fluid to flow and contains
the brains major arteries? - answerSubarachnoid space
The administration of a radioactive drug via the wrong route is an example of a: -
answerMedical event
The concept that patients are treated as individuals and informed about procedures to
facilitate appropriate decisions. - answerAutonomy
2 types of microwave power sources used in linear accelerators: - answerKlystron
Magnetron
An example of a condition that droplet precautions would be applied - answerInfluenza
Tumors arising from the mesenchymal cells: - answerSarcomas
Hodgkin's disease staging system: - answerAnn Arbor
After total body exposure to radiation, the time when the patient has no symptoms is
referred to as: - answerLatent phase
, At the field size increases, the PDD curve: - answerIncrease
What is the tolerance dose for 5% risk at 5 years (TD 5/5) for 1/3 of the brain? -
answer60 Gy
A radiation therapist who is 37 years old should not have a lifetime dose exceeding: -
answer370 mSv
Screening for colorectal cancer includes: - answerFecal occult blood test
A patient presenting with unilateral hearing loss and enlarged cervical lymph node
should be evaluated for suspected lesion relating to which primary diagnosis: -
answerNasopharyngeal
What is the TD 5/5 for the kidneys? - answer23 Gy
Radiolucent contrast agents: - answerAppear dark on radiographs
The IMRT x-ray output consistency should be checked on a ____ basis. -
answerMonthly
A whole body dose of 100-1000 cGy would cause symptoms form which syndrome? -
answerHematopoietic
T1b glottic cancer involves: - answerBoth vocal cords
In individuals with nasal cavity and paranasal sinus cancer, the most commonly
involved lymph node is the: - answerSubmandibular node
Hounsfield units measure: - answerAttenuation
The most common histology for cancer of the brain is: - answerAstrocytoma
The intensity of a photon beam decreases rapidly with increasing distance because of: -
answerInverse square law
Tumor grade is determined by: - answerDifferentiation
Tumor stage is determined by: - answerSize, extent, and lymph node involvement
The 3 major pathways of lymph drainage of the breast are: - answerInternal mammary
Transpectoral (drain to superclav)
Axillary
