Answers
What is the most common cancer in both men and women?
a. Brain b. larynx c. skin d. lung - answer✔✔C:skin
What is the staging system for lymphomas?
a. Ann Arbor b. Dukes c. TNM d. no staging system - answer✔✔A:Ann Arbor
What is the treatment of choice in all cancers if the patient is a candidate?
a. Chemo b. radiation therapy c. TBI d. surgery - answer✔✔D
What is the most common brain cancer in adults?
a. Astrocytoma b. metastatic c. meningioma d. medullablastoma - answer✔✔B
What type of sarcoma arises in smooth muscle?
a. Liposarcoma b. rhabdosarcoma c. histiocytoma d. leiomyosarcoma - answer✔✔D
What of the following are types of leukemia?
i.AML ii.CML iii.CAL iv. AAL
a.iii and iv b. I, ii, iii c. I only d. I and ii only - answer✔✔D
. Which of the following is the most common histology of breast cancer in MEN?
a. infiltrating ductal b. infiltrating lobular c. papillary d. tubular - answer✔✔A
What would indicate a better prognosis?
a.ER/PR negative b.ER/PR positive c. HER-2 d. neu expression - answer✔✔B
Which of the following are B symptoms associated with Hodgkins lymphoma?
i.unexplained weight loss greater than 10% ii.night sweats iii.fever iv. skin reddening
a. I, ii, iv b. I and ii only c. I, ii, iii d. all the above - answer✔✔C
What is the most common childhood cancer?
EXAM STUDY MATERIALS July 26, 2024 9:30 AM
, a. osteosarcomas b. leukemia c. brain or other nervous system d. Non-Hodgkins - answer✔✔B
What is the equivalent square of a field measuring 14.5x22?
a. 16.5 b. 17.5 c. 17 d. 18 - answer✔✔B
What is the total MU required for a field delivering 240 cGy to a depth of 6cm for a 6 MV linac?
The TAR is .678 and dose rate is 1.01 cgy/mu
a. 350.5 b. 237.6 c. 354 d. 249 - answer✔✔A
If a field size measures 27x16 on skin at 110 SSD, what is the collimator reading to treat the
same field but with a SSD of 90?
a.33x19.5 b. 28x16 c.22x13 d.31x12 - answer✔✔C
What is the cumulative exposure allowed for a radiation occupational worker who is 28 years old
but has worked with radiation for only 6 years?
a. 6 b. 28 c. 12 d. 22 - answer✔✔B
What is the total MU required for a field delivering 427 cGy to a depth of 13cm of a 10 MV
lianc? The TAR is .304 and the dose rate is 1.87 cGy/mu.
a. 751 MU b. 746 MU c. 757 MU d. 743 - answer✔✔A
What is the Quality Factor (QF) of x-rays?
a. 2 b. 1.5 c. 1 d. 3 - answer✔✔C
What is this equation for? Tolerance of normal tissue/tolerance of tumor tissue.
a. TMR b. therapeutic ratio c. TPR d. OER - answer✔✔B
How many half value layers does a source have to go through to get to less than 10% the original
energy?
a. 2 b. 3 c. 4 d. 5 - answer✔✔C
Percent depth dose:
a. Increases with increasing SSD
b. Increases with increasing photon energy
c. Completely independent of anything
d. A and b - answer✔✔D
The half-life of I125 is 60 days. After 6 months what will be the decrease in activity?
a. 75%
EXAM STUDY MATERIALS July 26, 2024 9:30 AM