Questions and CORRECT Answers
If a patient arrives with lab work results indicating a white blood cell count of <2000 g/dI, the
therapist should: - CORRECT ANSWER - Bring this to the radiation oncologists attention
prior to treatment delivery.
Which of these devices may best be used to measure the dose at various points within a mantle
field when treating a Hodgkin's patient? - CORRECT ANSWER - TLD
Radiation exposure during the gestation period of _______ days usually affects the nervous
system. - CORRECT ANSWER - 23 to 37
The primary lymphatic drainage of the testicle is the __________. - CORRECT
ANSWER - Periaortic nodes
One rem is equal to _________ Sv. - CORRECT ANSWER - 0.01 Sv
Orthogonal films are two portal images that are captured ___ degrees apart - CORRECT
ANSWER - 90
A lateral decubitus position refers to having the patient: - CORRECT ANSWER - lie on
their side
Which of the following organs is most sensitive to radiation? - CORRECT ANSWER -
lung
Which of the following is not one of the four R's of radiation therapy? - CORRECT
ANSWER - Reconfirmation
, Topograms: - CORRECT ANSWER - Are referred to as pilot or scout images, are used for
patient alignment, define CT scan range
For the treatment of prostate cancer, conventional doses consist of: - CORRECT
ANSWER - 7,500 cGy to 8,000 cGy
Which of the following describes CT simulation lasers? - CORRECT ANSWER - Consists
of a single overhead laser that moves to protect the sagital plane.
Are two vertical moving lateral lasers to project coronal plane.
Can be fixed lasers to project the transverse plane
brachytherapy is commonly used for all of the following cancers, except for _________ cancer. -
CORRECT ANSWER - pancreatic
All of the following are examples of external beam, radiation treatment, delivery methods,
except: - CORRECT ANSWER - CBCT
Which can we of the brain and/or spinal cord is the MOST likely to seed through the craniospinal
fluid? - CORRECT ANSWER - Medulloblastoma
The most anterior lobe of the cerebrum is the: - CORRECT ANSWER - frontal lobe
The process posterior to the earlobe that can be used to mark the inferior border of the whole
brain field is the: - CORRECT ANSWER - mastoid process
The goal of ________ care is to help dying patients and their families by providing support for
quality of life. - CORRECT ANSWER - Hospice