RADT 101 FINAL EXAM QUESTIONS
WITH 100% CORRECT ANSWERS
What radiation is of any clinical value?
A. Remnant
B. Scatter
C. Primary
D. Compton - Answer-A. Remnant
What type of material are CR plates coated with?
A. Magnesium Fluorohalide
B. Amorphous Selenium
C. Amorphous Gadolinium
D. Barium Fluorohalide - Answer-D. Barium Fluorohalide
What is needed to release the image in the CR plates when processed?
A. Laser
B. Chemicals
C. Nothing
D. Light - Answer-A. Laser
What is NOT an advantage of Flat Panel DR Technology?
A. Improved spatial resolution
B. Improves usability
C. Replaces cassettes
D. Lower patient dose - Answer-B. Improves usability
Radiographic grids are not so important with digital technology
A. True
B. False - Answer-B. False
What is the primary danger to digital detectors when imaging patients?
A. Overcharging
B. Dropping the detector
C. Overexposing
D. Battery damage - Answer-B. Dropping the detector
The main difference between Radiography and Fluoroscopy is that Fluoroscopy is real
time.
A. True
,B. False - Answer-A. True
What is the main difference between Radiography tables and Fluoroscopic tables?
A. Tilt
B. Horizontal movement
C. Rotation
D. Longitudinal movement - Answer-A. Tilt
Where is the source of radiation from a fluoroscopic table or c-arm?
A. Bottom
B. Top
C. Right
D. Left - Answer-A. Bottom
What is "fixed" (can't adjust) in a mobile c-arm unit?
A. Rotation
B. Tilt
C. SID
D. Angulation - Answer-C. SID
What can be added to the R/F tower to reduce radiation?
A. Copper filter
B. Lead curtain
C. Aluminum filter
D. Grid - Answer-B. Lead curtain
What new imaging technologies has DR introduced?
A. All of the above
B. Digital Tomosynthesis
C. Dual-energy subtraction
D. Grid replacement software - Answer-A. All of the above
Approximately how much does a brand new portable radiographic DR detector cost?
A. $20,000
B. $80,000
C. $40,000
D. $5,000 - Answer-B. $80,000
_______ must outweigh _________ of any diagnostic study using ionizing radiation.
A. Risks, Benefits
B. Cause, Effects
C. Effects, Causes
D. Benefits, Risks - Answer-D. Benefits, Risks
What causes ionization?
A. Compton Scatter
, B. Loss of electrons
C. Photoelectric effect
D. Gaining electrons - Answer-B. Loss of electrons
What makes up the largest portion of human-made radiation exposure?
A.None of the above
B. Cosmic Radiation
C. Nuclear Weapons
D. All of the above
E. Nuclear Power Plants - Answer-A.None of the above
What is NOT one of the three paths x-ray can undergo?
A. Tertiary Interactions
B. Total Absorption
C. Secondary Interactions
D. Pass through - Answer-A. Tertiary Interactions
When were X-rays discovered?
A. 1795
B. 1890
C. 1895
D. 1901 - Answer-C. 1895
What form of Energy are X-rays?
A. Thermal
B. Electromagnetic
C. Magnetic Resonance
D. Alpha particles - Answer-B. Electromagnetic
Does Diagnostic Medical Sonography involve Ionizing Radiation?
A. Possible
B. Yes
C. Some
D. No - Answer-D. No
What does Magnetic Resonance Imaging use to scan patients?
A. Magnetic fields and beta particles
B. Ionizing Radiation and Light
C. Ultrasonic waves and fluorescence
D. Magnetic fields and Radio waves - Answer-D. Magnetic fields and Radio waves
What does CT stand for?
A. Computed Tomography
B. Computed Triangulation
C. Calibrated Testing
D. Computer Template - Answer-A. Computed Tomography
WITH 100% CORRECT ANSWERS
What radiation is of any clinical value?
A. Remnant
B. Scatter
C. Primary
D. Compton - Answer-A. Remnant
What type of material are CR plates coated with?
A. Magnesium Fluorohalide
B. Amorphous Selenium
C. Amorphous Gadolinium
D. Barium Fluorohalide - Answer-D. Barium Fluorohalide
What is needed to release the image in the CR plates when processed?
A. Laser
B. Chemicals
C. Nothing
D. Light - Answer-A. Laser
What is NOT an advantage of Flat Panel DR Technology?
A. Improved spatial resolution
B. Improves usability
C. Replaces cassettes
D. Lower patient dose - Answer-B. Improves usability
Radiographic grids are not so important with digital technology
A. True
B. False - Answer-B. False
What is the primary danger to digital detectors when imaging patients?
A. Overcharging
B. Dropping the detector
C. Overexposing
D. Battery damage - Answer-B. Dropping the detector
The main difference between Radiography and Fluoroscopy is that Fluoroscopy is real
time.
A. True
,B. False - Answer-A. True
What is the main difference between Radiography tables and Fluoroscopic tables?
A. Tilt
B. Horizontal movement
C. Rotation
D. Longitudinal movement - Answer-A. Tilt
Where is the source of radiation from a fluoroscopic table or c-arm?
A. Bottom
B. Top
C. Right
D. Left - Answer-A. Bottom
What is "fixed" (can't adjust) in a mobile c-arm unit?
A. Rotation
B. Tilt
C. SID
D. Angulation - Answer-C. SID
What can be added to the R/F tower to reduce radiation?
A. Copper filter
B. Lead curtain
C. Aluminum filter
D. Grid - Answer-B. Lead curtain
What new imaging technologies has DR introduced?
A. All of the above
B. Digital Tomosynthesis
C. Dual-energy subtraction
D. Grid replacement software - Answer-A. All of the above
Approximately how much does a brand new portable radiographic DR detector cost?
A. $20,000
B. $80,000
C. $40,000
D. $5,000 - Answer-B. $80,000
_______ must outweigh _________ of any diagnostic study using ionizing radiation.
A. Risks, Benefits
B. Cause, Effects
C. Effects, Causes
D. Benefits, Risks - Answer-D. Benefits, Risks
What causes ionization?
A. Compton Scatter
, B. Loss of electrons
C. Photoelectric effect
D. Gaining electrons - Answer-B. Loss of electrons
What makes up the largest portion of human-made radiation exposure?
A.None of the above
B. Cosmic Radiation
C. Nuclear Weapons
D. All of the above
E. Nuclear Power Plants - Answer-A.None of the above
What is NOT one of the three paths x-ray can undergo?
A. Tertiary Interactions
B. Total Absorption
C. Secondary Interactions
D. Pass through - Answer-A. Tertiary Interactions
When were X-rays discovered?
A. 1795
B. 1890
C. 1895
D. 1901 - Answer-C. 1895
What form of Energy are X-rays?
A. Thermal
B. Electromagnetic
C. Magnetic Resonance
D. Alpha particles - Answer-B. Electromagnetic
Does Diagnostic Medical Sonography involve Ionizing Radiation?
A. Possible
B. Yes
C. Some
D. No - Answer-D. No
What does Magnetic Resonance Imaging use to scan patients?
A. Magnetic fields and beta particles
B. Ionizing Radiation and Light
C. Ultrasonic waves and fluorescence
D. Magnetic fields and Radio waves - Answer-D. Magnetic fields and Radio waves
What does CT stand for?
A. Computed Tomography
B. Computed Triangulation
C. Calibrated Testing
D. Computer Template - Answer-A. Computed Tomography
