Solutions
A cell's operational "programming" is stored in what part of the
cell?
A. chromosomes
B. genes
C. DNA
D. cytoplasm Correct Answers C
A charge coupled device utilized for image viewing compared to
an analog TV camera tube will exhibit increased
a. spatial resolution
b. signal - to - noise ratio
c. detective quantum efficiency
d. all of the above Correct Answers d
A charged coupled device (CCD) has _____________
sensitivity to light and a _____________ level of signal-to-noise
ratio than an analog pick-up tube.
a. lower, lower
b. higher, higher
c. higher, lower
d. lower, higher Correct Answers b
A closed circuit fluoroscopic television system operates at a
frame rate of:
,a. 262 1/2 frames/second
b. 60 frames/second
c. 30 frames/second
d. 525 frames/second Correct Answers c
A digital camera uses a _____________ to capture light from
the output phosphor on an image intensifier.
A. closed circuit digital
B. contrast control device
C. charge coupled device
D. cold cathode device Correct Answers C
A digital fluoroscopy with a charge coupled device has lower
___________ and higher ____________ than conventional
fluoroscopy.
A. patient dose, light sensitivity
B. detective quantum efficiency, maintenance
C. light sensitivity, patient dose
D. signal-to-noise ratio, patient dose Correct Answers A
A fluoroscopy system using a dynamic flat panel image receptor
as compared to conventional fluoroscopy requires
a. higher tube potential
b. higher x-ray tube current
c. lower x-ray tube current
d. higher capacity x-ray tubes Correct Answers b
,A person wearing a _ apron will reduce transmitted exposure to
approximately 99.9% of the incident scatter dose
A. 1.5 mm Pb equivalent
B. 0.50 mm Pb equivalent
C. 0.25 mm Pb equivalent
D. 1.0 mm Pb equivalent Correct Answers B
A special angiographic image post processing technique that
facilitates navigation of a guide wire through torturous vessels is
called?
a. roadmapping DSA
b. temporal subtraction
c. energy subtraction
d. hybrid subtraction Correct Answers a
A technologist can reduce his or her exposure during
fluoroscopy by moving:
A. farther away from the patient
B. behind the radiologist
C. closer to the patient's head
D. both A & B Correct Answers D
ABS in the context of floroscopy stands for
a. automatic breaking system
b. automatic brightness stabilization
c. altitude binary stabilization
d. ancillary breaking system Correct Answers B
, According to CA state regulations, using a fluoroscope to
position patients prior to taking a routine radiographic film is
a. prohibited by law
b. generally acceptable
c. up to the licentiate's discretion
d. acceptable under certain conditions Correct Answers a
According to california state law: protective lenses
___________ be utilized during fluoroscopy:
A. may be
B. shall
C. should
D. may not Correct Answers C
All of the following will directly affect patient exposure except?
A. exposure time
B. 3 phase generator
C. target-to-panel distance
D. collimation Correct Answers B
At what dose of radiation can produce skin erythema?
a. 1 Gy
b. 10 Gy
c. 2 Gy
d. 20 Gy Correct Answers C