Radiologic Technologist – Board Review Study Guide
and Practice Material
Minimizing patient exposure can be accomplished by using all of the following EXCEPT:
A) a single-phase generator.
B) added tube filtration.
C) beam restriction.
D) low mAs settings. - ANS✔✔ A
Single-phase generators require more exposure than 3-phase or high-frequency generators
because of
their decreased x-ray production efficiency.
________ is the local processing function of renumbering pixel values for an entire image
domain.
A) The look-up table (LUT)
B) The histogram
C) Equalization
D) Windowing - ANS✔✔ D
Windowing renumbers pixel values across the image domain.
The ________ detector consists of a thin-film transistor array.
A) flat-panel
B) photostimulable phosphor plate (PSP)
C) charge coupled device (CCD)
D) complementary metal-oxide semidonductor (CMOS) - ANS✔✔ A
,Both indirect and direct flat panel detectors contain a thin-film transistor array. The TFT is
involved in
charge readout when voltage is applied to the pixels.
All of the following are regarded as special considerations when establishing technique charts
EXCEPT:
A) radiographer skill.
B) patient age.
C) casts.
D) contrast media. - ANS✔✔ A
A technologist notices that a co-worker selects exposure factors for a patient's examination that
are much
higher than indicated by department protocol or technique charts. The technologist should:
A) defer to a more senior technologist's experience and do not say anything.
B) go immediately to the department supervisor and suggest an investigation.
C) talk to the technologist about why those exposure factors were chosen and express concern
about overexposing the
patient.
D) express concern to other technologists in the department. - ANS✔✔ C
Which of the following is FALSE about the laboratory value GFR?
A) GFR stands for glomerular filtration rate.
B) GFR is calculated from the results of a blood urea nitrogen (BUN) test.
C) GFR estimates how much blood passes through the glomeruli of the kidney.
D) GFR is a measure of kidney function and estimation of degree of kidney disease. - ANS✔✔ B
, Until a photostimulable phosphor plate (PSP) is processed, electrons freed upon irradiation are
stored in
the:
A) valence band.
B) photodetector.
C) conduction band.
D) conductive layer. - ANS✔✔ C
A 55-year-old woman is in the radiology department for a barium enema. She is anxious about
the
examination and says that she heard it is "painful and horrible." The technologist should
communicate
with the patient by: 1. using medical and technical terminology when explaining the procedure.
2.
keeping explanations simple and truthful. 3. using eye contact and an empathetic tone when
explaining
the procedure.
A) 1 and 2
B) 1 and 3
C) 2 and 3
D) 1, 2, and 3 - ANS✔✔ C
What type of contrast medium dissociates into 2 molecular particles in water?
A) nonionic agents
B) hydroxyl groups
C) amine groups
D) ionic agents - ANS✔✔ D
and Practice Material
Minimizing patient exposure can be accomplished by using all of the following EXCEPT:
A) a single-phase generator.
B) added tube filtration.
C) beam restriction.
D) low mAs settings. - ANS✔✔ A
Single-phase generators require more exposure than 3-phase or high-frequency generators
because of
their decreased x-ray production efficiency.
________ is the local processing function of renumbering pixel values for an entire image
domain.
A) The look-up table (LUT)
B) The histogram
C) Equalization
D) Windowing - ANS✔✔ D
Windowing renumbers pixel values across the image domain.
The ________ detector consists of a thin-film transistor array.
A) flat-panel
B) photostimulable phosphor plate (PSP)
C) charge coupled device (CCD)
D) complementary metal-oxide semidonductor (CMOS) - ANS✔✔ A
,Both indirect and direct flat panel detectors contain a thin-film transistor array. The TFT is
involved in
charge readout when voltage is applied to the pixels.
All of the following are regarded as special considerations when establishing technique charts
EXCEPT:
A) radiographer skill.
B) patient age.
C) casts.
D) contrast media. - ANS✔✔ A
A technologist notices that a co-worker selects exposure factors for a patient's examination that
are much
higher than indicated by department protocol or technique charts. The technologist should:
A) defer to a more senior technologist's experience and do not say anything.
B) go immediately to the department supervisor and suggest an investigation.
C) talk to the technologist about why those exposure factors were chosen and express concern
about overexposing the
patient.
D) express concern to other technologists in the department. - ANS✔✔ C
Which of the following is FALSE about the laboratory value GFR?
A) GFR stands for glomerular filtration rate.
B) GFR is calculated from the results of a blood urea nitrogen (BUN) test.
C) GFR estimates how much blood passes through the glomeruli of the kidney.
D) GFR is a measure of kidney function and estimation of degree of kidney disease. - ANS✔✔ B
, Until a photostimulable phosphor plate (PSP) is processed, electrons freed upon irradiation are
stored in
the:
A) valence band.
B) photodetector.
C) conduction band.
D) conductive layer. - ANS✔✔ C
A 55-year-old woman is in the radiology department for a barium enema. She is anxious about
the
examination and says that she heard it is "painful and horrible." The technologist should
communicate
with the patient by: 1. using medical and technical terminology when explaining the procedure.
2.
keeping explanations simple and truthful. 3. using eye contact and an empathetic tone when
explaining
the procedure.
A) 1 and 2
B) 1 and 3
C) 2 and 3
D) 1, 2, and 3 - ANS✔✔ C
What type of contrast medium dissociates into 2 molecular particles in water?
A) nonionic agents
B) hydroxyl groups
C) amine groups
D) ionic agents - ANS✔✔ D
