Dosimetry Exam #2 Actual Questions
and Answers 2026
A patient is lying supine and the physician wants the field moved
cephalad 1cm. What direction is the table moved? -
correct answer ✅out
"Smearing" or moving junctions and/or gaps between fields is
called: -
correct answer ✅feathering
Simulation with a fluoroscope is a: -
correct answer ✅dynamic study
What type of setup is preferred? -
correct answer ✅isocentric SAD
A type of 3-dimensional film commonly used for implants whereby
the film and patient remain stationary while the target rotates is
called: -
correct answer ✅stereo-shift
Positive contrast agents appear ____on a film -
correct answer ✅white, opaque
,Dosimetry Exam #2 Actual Questions
and Answers 2026
Which of the following is not an example of a positive contrast
agent? -
correct answer ✅lungs
The large half beam block (or asym jaws) used on our tangential
breast fields serves to reduce beam divergence from the tangents
into the lungs.
T/F -
correct answer ✅True
What is the simplest and easiest method for contouring? -
correct answer ✅solder wire
What is the most accurate contouring device? -
correct answer ✅CT
What is the primary advantage of treating patients isocentrically? -
correct answer ✅not moving patients between fields
An attempt at 3-dimensional filming that uses only one lateral film
and relates magnification and divergence on film compared to
, Dosimetry Exam #2 Actual Questions
and Answers 2026
isocenter is (i.e.-how one of our doctors In the past determined the
depth of the spinal cord on pa spine patients): -
correct answer ✅cross table lateral
A port film taken before a treatment that aids in localization is
called: -
correct answer ✅scout film
Which of the following has been a method for taking contours? -
correct answer ✅plaster of Paris
solder wire
CT
If a patient is lying prone and the physician wants the field moved
1.0cm anterior, in what direction is the table moved? -
correct answer ✅up
If a patient is lying prone and the physician wants the patient
moved 1.0cm anterior, in what direction is the table moved? -
correct answer ✅down
and Answers 2026
A patient is lying supine and the physician wants the field moved
cephalad 1cm. What direction is the table moved? -
correct answer ✅out
"Smearing" or moving junctions and/or gaps between fields is
called: -
correct answer ✅feathering
Simulation with a fluoroscope is a: -
correct answer ✅dynamic study
What type of setup is preferred? -
correct answer ✅isocentric SAD
A type of 3-dimensional film commonly used for implants whereby
the film and patient remain stationary while the target rotates is
called: -
correct answer ✅stereo-shift
Positive contrast agents appear ____on a film -
correct answer ✅white, opaque
,Dosimetry Exam #2 Actual Questions
and Answers 2026
Which of the following is not an example of a positive contrast
agent? -
correct answer ✅lungs
The large half beam block (or asym jaws) used on our tangential
breast fields serves to reduce beam divergence from the tangents
into the lungs.
T/F -
correct answer ✅True
What is the simplest and easiest method for contouring? -
correct answer ✅solder wire
What is the most accurate contouring device? -
correct answer ✅CT
What is the primary advantage of treating patients isocentrically? -
correct answer ✅not moving patients between fields
An attempt at 3-dimensional filming that uses only one lateral film
and relates magnification and divergence on film compared to
, Dosimetry Exam #2 Actual Questions
and Answers 2026
isocenter is (i.e.-how one of our doctors In the past determined the
depth of the spinal cord on pa spine patients): -
correct answer ✅cross table lateral
A port film taken before a treatment that aids in localization is
called: -
correct answer ✅scout film
Which of the following has been a method for taking contours? -
correct answer ✅plaster of Paris
solder wire
CT
If a patient is lying prone and the physician wants the field moved
1.0cm anterior, in what direction is the table moved? -
correct answer ✅up
If a patient is lying prone and the physician wants the patient
moved 1.0cm anterior, in what direction is the table moved? -
correct answer ✅down
