Failed ASRT 2 Questions

Question 1

The doctrine of ________________ describes how a person is injured through no fault of his/her own.

Answer 1

res ipsa loquitor

Question 2

What is the normal range of white blood cells in a healthy adult?

Answer 2

3,500 to 10,500 cells/mcL

Question 3

Effects on __________ cells may have a clinical impact.

Answer 3

somatic

Question 4

Which of the following is true regarding sensitive screening tests?

Answer 4

They are able to provide a true positive result.

Question 5

In an isodose distribution, the point where the dose is set at 100% is called the:

Answer 5

Normalization

Question 6

Level II axillary lymph nodes lie:

Answer 6

Under the pectoralis muscle

Question 7

Indirect interaction of radiation and the cell is more likely to occur using which type of radiation:

Answer 7

Low LET

Question 8

The hard palate is part of which subdivision of the head and neck?

Answer 8

Oral Cavity

Question 9

The penetration of x-ray through tissue is primarily a function of:

Answer 9

kilovoltage (kV)
The kilovoltage controls the beam quality. The kVp regulates the speed of electrons traveling from the
cathode to the anode and determines the penetrating ability of the x-ray beam.

Question 10

Which of the following describes CT simulation lasers? Please select all that apply.

Answer 10

• Consist of a single overhead laser that moves to project the sagittal plane.
• Are two vertical moving lateral lasers to project coronal plane.
• Can be fixed lasers to project the transverse plane.

Question 11

One rem is equal to:

Answer 11

0.01 SV
1 sv = 1 Gy
1 rem = 1 cgy

Question 12

The base of the tongue first spreads to what lymph node or lymph group?

Answer 12

Jugulodigastric

Question 13

Relative biological effect (RBE) refers to a comparison of the effect of radiation of a test type as
compared to the effect of the standard of:

Answer 13

250 kV xray

Question 14

The MOST common site for heterotopic bone formation is the:

Answer 14

acetabulum (femoral head meets pelvis)

Question 15

Which is NOT used to achieve a uniform dose by compensating for missing or curved tissue?
wedges
shielding blocks
MLC
bolus

Answer 15

MLC

Question 16

What is the daily tolerance of the laser and treatment isocenter coincidence?

Answer 16

+/- 2 mm

Question 17

The benefits of brachytherapy include which of the following?

Answer 17

Can be performed on an out-patient basis
Has a shorter recovery time
Is a minimally invasive technique

Question 18

The result of whole body irradiation to doses in the 1,000 - 5,000 cGy range which will result in system
failure of the _____________ is manifested by infection, bone marrow depression, electrolyte imbalance,
watery diarrhea, and denudation to the villi in the small intestines.

Answer 18

GI

Question 19

A PA only treatment field is an example of a ___ treatment

Answer 19

2D

Question 20

All of the following are contraindications for chemotherapy, EXCEPT:
Third trimester pregnancy.
Recent surgery.
Liver or kidney impairment.
Infection.

Answer 20

Third trimester pregnancy

Question 21

What is the normal range of platelets in a healthy adult?

Answer 21

150,000-450,000 mc/L

Question 22

The primary lymphatic drainage of the testicle is the _______.

Answer 22

periaortic nodes

Question 23

During which stage of gestation is embryonic death and resorption the most common result of exposure
to radiation?

Answer 23

preimplantation

Question 24

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?

Answer 24

TLD

Question 25

Which of the following organs is most sensitive to radiation?
bladder
brain
liver
lung

Answer 25

lung

Question 26

Ionic iodine contrast media is referred to:

Answer 26

As radiopaque and has a high osmolality rate.

Question 27

When using a custom cerrobend block, what needs to be added to the monitor unit calculations?

Answer 27

tray factor

Question 28

The therapist creates ___________ images to demonstrate reproduction of the treatment area and verify correct beam placement.

Answer 28

localization

Question 29

Radiation exposure during the gestational period of _________ days usually affects the nervous system.

Answer 29

23-37

Question 30

A ________________ should be used to help hold a patient securely when transferring from a
wheelchair to the table.

Answer 30

transfer belt

Question 31

Which cancer of the brain and/or spinal cord is the MOST likely to seed through the craniospinal fluid?

Answer 31

medulloblastoma

Question 32

The prostate can be located by the:

Answer 32

neck of the femur

Question 33

What is the daily tolerance level of the optical distance indicator (ODI)?

Answer 33

2 mm

Question 34

For the treatment of prostate cancer, conventional doses consist of:

Answer 34

7000-8000 cgy

Question 35

The opening between the stomach and the duodenum is the:

Answer 35

pyloric sphincter

Question 36

Positioning aids consist of:

Answer 36

Prone pillows and head rests.

Question 37

A highly reactive species with an unpaired valence or outer shell electron is known as a(n)?

Answer 37

free radicle

Question 38

Regarding the cell survival curve, _____ is determined by the final portion of the curve. It is an
expression of radio sensitivity of the cell.

Answer 38

Do
D0 is an expression of radiosensitivity and is determined by the final portion of the cell survival curve.