Upgrade to remove ads
Only $2.99/month

Final for RTE 2100

Terms in this set (103)

The technologist primarily controls radiographic contrast by varying the ____ .
kVp
Which of the following statements is true about windowing?
Saving adjusted windowing settings to the PACS system narrows the dynamic range for future viewers.
Windowing occurs after the image is displayed on the monitor.
Windowing is referred to as a postprocessing manipulation procedure.
Saving adjusted windowing settings to the PACS system narrows the dynamic range for future viewers.
Subject contrast is affected by ____ ?
patient thickness
Which if the following is the artifact term used for when an image resembles a double exposure?
Phantom image
Which of the following is defined the ability of an imaging system to demonstrate small details of an object?
Spatial resolution
How many shades of gray can each pixel in a digital matrix display at one time?
one
Which of the following would be an example of an internal artifact?
insulin pump
Which of the following is defined as a system's ability to respond to varying levels of exposure, resulting in more detail?
Dynamic range
Which of the following is defined as the efficiency of a system to convert x-ray input signal into a useful output image?
Detective quantum efficiency
Which of the following is defined as the ability of a system to record available spatial frequencies?
Modulation transfer function (MTF)
Which of the following patient conditions demonstrates low subject contrast?
High fat content
How dark or light a digital image appears on a display monitor is known as:
brightness
A high quality radiograph should always demonstrate ____ .
appropriate structures and tissues
An image receptor with ____ can be used over a greater range of exposures
Wide latitude
Which of the following best explains exposure indicators?
Denote the quantity of photons that strike the IR.
Which of the following patient conditions demonstrates high subject contrast?
Dense bones
Which of the following technical factors is primarily used to regulate contrast?
kVp
Which if the following statements is true about quantum noise (mottle)?
Quantum noise results in excessive patient dose when present on the image.
Quantum noise is demonstrated as a blotchy appearance on the image.When present, quantum noise requires an increase in exposure factors to reduce its visualization on the image.Quantum noise results in excessive patient dose when present on the image
The size of the pixel is determined by the:
matrix
Which of the following is an example of an artifact that would be acceptable on a radiograph?
Pacemakers
Which of the following does not represent the exposure indicator number?
Measure of dose to the patient.
Which of the following is defined as the range of exposure values the image detector is able to produce?
Latitude
Which of these body parts has the highest subject contrast?
Chest
Saturation indicates which of the following?
Overexposure of the IR
Which of the following is defined the ability of a digital system to display subtle changes in shades of gray?
Contrast resolution
When is the examination or body part selected when using the DR system?
Before the radiation exposure.
Which of the following patient conditions demonstrates low subject contrast
Obesity
Overexposure of an image receptor will always require a repeat image to be taken?
False
Which of the following could result in a histogram analysis error when using CR?
putting multiple projections on one image receptor
background radiation fogging
all of these
less than 30% of the image receptor is exposed
Which of the following is not a weekly procedure?
Performing reject analysis
The American Association of Physicists in Medicine has established the set of QC parameters for all digital imaging systems
False
When is routine maintenance performed?
daily, weekly, and monthly
Acceptance testing is the responsibility of the:
radiation physicist.
Which of the following is another name for quality management
continuous quality improvement (CQI)
Positioning errors may be the cause of incorrect processing due to mistakes in:
part-to-plate position.
alignment.
collimation
When cleaning imaging plates, which of the following should not be used?
mild abrasive
Unless manual input is required, it is difficult to identify the technologist when personal side markers are not used.
true
Which of the following committees developed the standard for Digital Imaging and Communication?
ACR and NEMA
Major artifacts should be noted and reported:
immediately
How often should radiation protection equipment be x-rayed for quality control?
annually
Acceptance testing is usually performed when which of the following occurs?
a digital image receptor needs to be replaced
an x-ray tube is replaced
a new piece of equipment is installed
SMPTE stands for which of the following?
Society of Motion Picture and Television Engineers
Which of the following is the standard protocol used for transferring medical images?
DICOM
Frequent and consistent oversight of digital equipment is necessary to avoid:
unnecessary patient exposure
The purpose of repeat analysis is to:
establish error trends
Evaluation of the monitors should be done with the ____ test tool.
TG18-QC
Image acquisition is tested through the use of which of the following?
phantoms
The safest procedure for erasing cassettes is to erase them:
just before use
If the hinges of a cassette are broken, they can be fixed by the:
service personnel.
Which of the following best defines what a photometer is?
luminesence meter
Three general areas that define digital image quality include all but which one of the following?
Contrast
Noise
Resolution
Preventive maintenance is performed
Semiannually
When is error maintenance performed?
when equipment fails and corrective action must be taken
Which of the following is the first line of defense in preventing, recognizing, and reporting QC?
technologist.
Re-establishing baseline values is the responsibility of the:
radiation physicist.
Which of the following is defined as a comprehensive set of activities designed to monitor and maintain a piece of equipment?
QC
What is the title given to an individual who is well trained in overseeing the PACS?
PACS administrator
Which of the following would be considered a QA process in the radiology department?
image quality
patient wait times
work flow
Total Quality Management includes both quality assurance and quality control.
true
Which of the following is the organization which develops patient care standards and accredits most hospitals in the United States?
TJC
Which of the following is a "disciplined, data-driven approach for eliminating defects"?
Six Sigma
Which of the following is defined as the set of comprehensive activities intended to monitor and maintain systems that produce a product?
quality control
Which of the following is best defined as the imaging acquisition process that produces an electronic image that can be viewed and manipulated on a computer?
digital imaging
Which of the following is defined as "a thinking process to eliminate waste"?
Lean
Continuous Quality Improvement (CQI) tends to focus on the process rather than on the people or the service.
true
Which of the following is related to phosphor imaging plates?
CR
What is the title given to an individual who is trained to troubleshoot and teach others to use the PACS?
super user
Quality assurance activities produce what type of data?
quantitative
Which of the following is the process to ensure the radiographic equipment is functioning within satisfactory limits?
acceptance testing
Which of the following is a Continued Quality Improvement activity?
documenting non-diagnostic images
Which of the following is defined as the plan for the systematic observation and assessment of the different aspects of a project, service, or facility to make certain that standards of quality are being met?
quality assurance
Which term is used for the digital information system used through a healthcare system?
health information system (HIS)
The ultimate focus in health care is to improve efficiency and provide high-quality images so that patients will want to return.
true
Which of the following is the term for abnormal accumulation of fluid in the intercellular spaces or body cavities?
edema
Which of the following is defined as a disease process caused by physicians or their treatment?
iatrogenic
A localized area of ischemic necrosis within a tissue or organ produced by vascular occlusion is a(n)
infarct
Which of the following is defined as the study of the cause of a disease process?
etiology
Which of the following is defined as the basic reactions of the body to some form of injury?
disease process
Diseases that are present at birth from genetic or environmental factors are classified as:
congenital
Which of the following is the initial response of body tissues to an injury?
inflammation
Which of the following is the term that defines a disease that causes an increase in x-ray attenuation?
additive
Which of the following is defined as the study of diseases in a population?
epidemiology
Which of the following is a measurable or objective manifestation of disease processes?
signs
Which of the following terms is used to denote a disease in which the underlying cause is unknown?
idiopathic
Which of the following is a term used for alterations of cell growth, specifically an abnormal proliferation of cells?
neoplasia
Which of the following is the term for the increase in the number of cells in a tissue or organ?
hyperplasia
New growths that invade and destroy adjacent structures and have the ability to spread are considered:
malignant
Which of the following is defined as the study of diseases?
pathology
Which of the following is controlled by the AEC?
time of exposure
Which of the following is the responsibility of the radiographer when using the AEC?
kVp
Which of the following best defines the term prognosis?
The predicted course and outcome of the disease
Which of the following is the term used for when there is an increased in the size of cells due to an increase in function?
hypertrophy
Depriving tissues of oxygen and nutrients caused by an arterial vessel narrowing is referred to as:
ischemia
Anatomically programmed radiography (APR) is a system in which the radiographer selects:
preset settings based on the part being imaged
If the AEC detectors are not completely covered by the part being imaged and are exposed to primary radiation
the exposure will terminate very quickly.
Select two of the following which are types of detectors used in AEC.
phototimers
ionization chambers
Which of the following is the term that defines a disease that causes a decrease in x-ray attenuation?
destructive
Which following is the term used for an accumulation of blood trapped within the body tissues?
hematoma
The term syndrome is best defined as:
signs and symptoms that characterize a specific abnormal disturbance.
Which of the following are feelings that the patient describes about a disease process?
symptoms
When using AEC, the kVp:
is set as appropriate for the study.
Which of the following terms is used for when there is a reduction in the size or number of cells in an organ?
atrophy
Which medical condition may require a lower technique?
Emphysema
OTHER SETS BY THIS CREATOR