Principles & Techniques of Fluoroscopy – Self Study RT 244
STATE FLUOROSCOPY EXAM PRACTICE (#116)
(Modification - omit the questions highlighted in GREEN) DC
1. The biological effects of radiation are healing arts
known to be influenced by all of the
following EXCEPT the:
a. type of radiation and dose rate 5. During a 2-minute (fluoroscopy
deliver to the tissue exposure time) routine upper G.I. series
b. size of the cells in the tissue examination, a typical x-ray exposure to
exposed the patient is:
c. total dose received by the tissue a. 0.5 roentgens
d. type of cells in the tissue exposed b. 1.0 roentgens
c. 6.0 roentgens
2. As the kilovoltage peak is increased and d. 30.0 roentgen
the milliampere seconds
correspondingly decreased, which of the
following occurs? 6. The California Radiation Control
a. image contrast increases Regulations define dose to mean
b. image distortion increases radiation absorbed per unit mass.
c. patient skin exposure increases Whole-Body dose means exposure to
d. patient skin exposure decreases which of the following: I Major portions
of the whole body
II Head and trunk
3. The greatest contribution of III Gonads
unnecessary radiation exposure to the IV Lens of the eye
patient comes from the x-ray operator’s V Active blood-forming organs
failure occurs? VI Whole body
a. collimate the x-ray beam to the area a. I only b. I, III, IV & VI only
of clinical interest only c. I & IV only d. all of the above
b. use proper gonadal shielding
c. use fast screens and films 7. According to the California radiation
d. use proper exposure (technical) Control Regulations, all EXCEPT which
factors of the following is defined as an
occupational dose? The dose received
by any occupationally exposed person:
4. All of the following must be posted in a. in a controlled area
areas where x-ray producing machines b. in the course of employment
are utilized EXCEPT: c. during the course of training
a. each x-ray supervisor and operator d. for his/her own medical or dental
permit diagnosis
b. each certified radiologic and
operator permit 8. The major source of secondary radiation
c. Radiologic Health Department Form in radiography is the:
RH-2364, “Notice to Employees” a. walls, floor and ceiling
d. each physician’s license for the b. cassette
, c. patient’s body d. remain the same
d. x-ray tabletop
9. What kind of barrier, if any, must be in all
walls, floors and ceilings
a. barrier equivalent to 1.5 mm of
aluminum
b. primary barrier
c. secondary barrier 13. If at one foot from the radiation source
d. no barrier is needed the intensity of exposure is 240
milliroentgens (mR) per hour and you
10. Film badges/ dosimeters are used by remain at this location for 10 minutes,
radiation workers, because: you will receive an exposure of 40
I. they are the only reliable means milliroentgens (mR). What would be
of dose measurement you exposure if you moved 2 feet away
II. they absorb part of the radiation from the radiation source and remained
and thus protect the worker from there for 20 minutes?
overexposure a. 2 milliroentgens
III. they are a practical means of b. 4 milliroentgens
providing long-term exposure records c. 20 milliroentgens
IV. they can measure exposure to the d. 80 milliroentgens
worker with reasonable accuracy
14. You are fluoroscoping a patient using 80
a. I and III only b. II and IV only kilovolt peak (k Vp) technique. At this
c. III and IV only d. I and II only kVp, the intensity of the x-ray beam at
table top should not exceed how many
11. Four fluoroscopic system equipped with roentgens per minute for each
an automatic brightness control ( milliampere (mA) of current?
automatic exposure control) mechanism a. 0.2 roentgens per minute
and where the x-ray tube is fixed below b. 1.0 roentgens per minute
the table, moving the image intensifier c. 2.2 roentgens per minute
away from the patient will: d. 5.0 roentgens per minute
a. reduce the image size of an
anatomic 15. The ability of the human eye to perceive
structure detail is called:
b. increase the size of the radiation a. visual acuity
field at the table top b. photopic vision
c. decrease patient dose c. vignetting
d. increase patient dose d. integration
12. If the exposure area is doubled by 16. The central portion of the image
opening the collimator, patient dose and intensified tube possesses the greatest
exposure to the operator will: a. detail
a. quadruple b. triple c. b. abberation
double c. brightness
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