#1
What is the primary purpose of radiography?
To produce images of the internal structures of objects using X-rays
ExplanationRadiography creates images of internal structures with X-rays.
#2
Which type of electromagnetic radiation is commonly used in radiography?
X-rays
ExplanationX-rays are commonly used in radiography.
#3
What is the purpose of a lead apron in radiography?
To protect against radiation exposure
ExplanationLead aprons protect against radiation exposure.
#4
Which imaging technique uses ionizing radiation and a computer to create detailed cross-sectional images of the body?
CT (Computed Tomography) scan
ExplanationCT scan uses ionizing radiation and a computer for detailed body images.
#5
Which material is commonly used as a contrast agent in X-ray imaging to enhance visibility of specific structures or organs?
Barium
ExplanationBarium is used as a contrast agent to enhance visibility.
#6
What is the unit of measurement for absorbed dose of ionizing radiation?
Gray
ExplanationGray is the unit for absorbed dose of ionizing radiation.
#7
Which imaging modality is commonly used for visualizing soft tissues, such as the brain and muscles, without using ionizing radiation?
MRI (Magnetic Resonance Imaging)
ExplanationMRI visualizes soft tissues without ionizing radiation.
#8
What is the role of a radiologic technologist in the process of radiography?
Operating imaging equipment and capturing images
ExplanationRadiologic technologists operate equipment and capture images.
#9
In radiography, what does the term 'grid' refer to?
A device used to remove scatter radiation
ExplanationGrids remove scatter radiation in radiography.
#10
Which of the following is a potential risk associated with excessive exposure to ionizing radiation in radiography?
Radiation-induced cancer
ExplanationExcessive exposure to radiation can cause cancer.
#11
In radiography, what is the term for the unwanted darkening of an image due to factors such as light exposure or processing errors?
Artifact
ExplanationArtifact is the term for unwanted darkening in images.
#12
What is the role of a radiologist in the field of radiography?
Interpreting and diagnosing medical images
ExplanationRadiologists interpret and diagnose medical images.