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Intro to Radiation Therapy Midterm Exam Questions and Answers
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as treatments reduce the number of tumor cells, the tumor's growth rate increases : true or false - Answer-true - treatments reduce the number of tumor cells, so the total volume of the tumor shrinks. This places the remaining tumor cells close to blood and nutrient supplies which increases the ove...

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  • October 7, 2024
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  • 2024/2025
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  • as treatments reduce the number of tumor cells th

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Intro to Radiation Therapy Midterm
Exam Questions and Answers
as treatments reduce the number of tumor cells, the tumor's growth rate increases : true
or false - Answer-true - treatments reduce the number of tumor cells, so the total
volume of the tumor shrinks. This places the remaining tumor cells close to blood and
nutrient supplies which increases the overall tumor's growth rate

the earlier a tumor is discovered, the lower is the chance of metastasis : true or false -
Answer-true

carcinoembryonic antigen (CEA) is an example of a screening examination that is both
sensitive and specific : true or false - Answer-false - find out why

the components of a cancer workup will remain the same regardless of tumor type or
stage : true or false - Answer-false - the elements will vary depending on tumor type,
think of melanoma vs basal cell carcinoma

preoperative radiation therapy and chemotherapy use lower doses than postoperative
doses : true or false - Answer-true - when used as preoperative, rad therapy and chemo
require lower doses for tissue healing, patient condition, etc.

immunotherapy suppresses the patient's immune systems to aid in other forms of
treatment such as radiation therapy or chemo : true or false - Answer-false -
immunotherapy amplifies the body's nature defenses against cancer and does not
suppress the immune system

all clinical trials are retrospective : true or false - Answer-false - by definition, a clinical
trial must be prospective

what of the following is NOT a term for genes involved in the cancer process? :
antioncogenes, oncogenes, protooncogenes, somatooncogenes - Answer-
somatooncogenes

which of the following is NOT a phase of the mammalian cell cycle? : G0, G1, G2, G3 -
Answer-G3

what is the correct order for the phases of the mammalian cell cycle - Answer-G1, S,
G2, M

which of the following factors affects the incidence of tumor sites - Answer-
environmental, technological, geographic (not informational)

what is the study of disease incidence? - Answer-epidemiology

, what is the "workup" - Answer-a series of diagnostic examinations

a T1N0Mx has how many positive lymph nodes? - Answer-0

tumor grade is a measure of... - Answer-aggressiveness and differentiation

what biopsy method results in the removal of the entire tumor? - Answer-excisional

what biopsy CANNOT evaluate tumor architecture - Answer-fine needle aspiration

factors that many exclude a patient from having surgery - Answer-preexisting medical
conditions, tumor location, patient preference (not tumor classification)

what is used for brachytherapy treatments - Answer-cesium, iodine, iridium (not cobalt)

what is a type of systemic treatment - Answer-chemotherapy

what routes of administration is used when treating bladder cancer with chemotherapy -
Answer-intracavitary

what of the following are NOT cell specific :
- alkylating agents
- antimetabolites
- antibiotics
- hormonal agents
- nitrosoureas
- vinca alkaloids - Answer-alkylating agents, antibiotics, nitrosoureas

what one of these chemotherapy agents are lipid soluble and capable of crossing the
blood-brain barrier?
- alkylating agents
- antimetabolites
- antibiotics
- hormonal agents
- nitrosoureas
- vinca alkaloids - Answer-nitrosoureas

injecting monoclonal antibodies is an example of which type of treatment - Answer-
immunotherapy

which factors are considered when determining a prognosis - Answer-tumor stage,
nodal status, gender

minors of any age can give or withhold consent : true or false - Answer-false - minors
are not considered legally competent

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