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What type of joints are the articulations between the intervertebral bodies
Symphyses
When performing a PA projection of the chest, what positioning step os essential to ensure accurate demonstration of the thoracic anatomy
Ensuring the patient’s shoulders are rolled forward
A technologist selects an exposure setting of 100 kVp and 2 mAs for a portable AP chest, x-ray without a grid on an average size patient, Which statement best describes the effect of this technique on image contrast
High kVp results in low contrast
In the process of digital image acquisition, what is the significance of the initial analog-to-digitial signal conversion step in maintaining image quality?
It enables further processing by the computer
The skull type in which the petrous ridges form a 45-47 degree with the midsagittal plane is the:
Mesocephalic (“Normal” size and shape)
When handling radioactive materials, which type of glove provides personnel the most effective protection?
Thick lead-lined gloves
An elderly patient with kyphosis requires an AP axial (Townes) projection x-ray. How should the technologist adjust the procedure to accommodate the patient’s spinal curvature?
Adjust the central ray angulation to match the patient’s posture
In the context of imaging informatics, what is the significance of DICOM standards?
They establish the communication and transmission criteria for image archiving and retrieval systems
How should a rad tech adjust the exposure parameters when imaging a patient with osteoporosis using digital radiography
Decrease kVp to avoid overexposure
A compound fracture is one in which the:
Fracture ends of bone penetrate the skin
Bremsstrahlung x-rays are produced by:
Decelerating Electrons
The outermost layer of the esophagus is a:
Fibrous Layer
Why is it crucial to ensure accurate entry of personal data?
To ensure accurate monitoring and risk assessment
In digital radiography, what is the impact of increasing the matrix size of the image?
Increased Spatial Resolution
In radiographic imaging, why is ti essential to utilize display monitors with minimal lag time?
To enable real-time imaging during dynamic studies
What is the advantage of using fluoroscopic unit with a digital detector system over a system using an image intensifier?
Lower Radiation Dose to the patient
Increasing the FOV while leaving all other factors the same will have what effect on the pixel size?
Increased Pixel Size
After completing a T-Spine radiograph, the tech is having difficulty distinguishing between densities. What could be the most effective adjustment to improve image contrast in this scenario?
Reduce the kVp setting
What is the most effective method to reduce quantum mottle in a digital radiographic image?
Increase the mAs
A radiographic tech is assessing the quality of a new fluoro system , what is the primary reason for checking the temporal resolution of the system?
To determine how quickly the system can process and display live images
The envelope that surrounds the x-ray tube is most commonly made of:
Pyrex
In digital radiography, what is the impact of increasing the matrix size of the image?
Increased spatial resolution
What is the primary purpose of the EI within a digital radiography system?
Aid in the selection of appropriate technical factors
In radiographic imaging, why is it essential to utilize display monitors with minimal lag time?
To enable real-time imaging during dynamic studies
What is the primary purpose of using a high-pass filter in digital image processing?
To enhance the visibility of sharp edges
A patient with a hypersthenic body habitus requires a lateral T-Spine radiograph, but standard technical factors result in inadequate penetration with appropriate exposure levels, which procedural adaptation can improve image quality while maintaining exposure
Increase kVp and adjust mAs accordingly
When imaging a patient with suspected bronchitis, how should the radiologic technologist adjust the exposure settings from the technique chart, if at all?
Maintain the same setting as for a standard chest
On the average patient, the esophagus ends at what vertebral level?
T11
The Xiphoid process lies at what level on a sthenic patient
T10
How many phalanges are in each foot?
14
On an image of a mediolateral projection of the ankle, the technologist notices the fibula superimposing the anterior half of the tibia, what, if any, mistake has been made?
Leg was internally rotated
What is the central ray entrance point for a PA projection of the barium-filled large intestine for a sthenic patient?
Midsagittal plane and the level of the iliac crest
What is the primary drug of metabolism
Liver
Where would the distal top of a tunneled line, such as a Hickman catheter, be located?
Superior Vena Cava
Which chamber of the heart is responsible for pumping blood to the lungs?
Right Ventricle
When using fluoro equipments, which is directly proportional to the exposure delivered to the patient?
mA
The process used to identify the useful exposure values in the digital image is called:
Histogram Analysis
Because of the line-focus principle, the effective focal spot size decreases with decreasing:
Target Angle
In radiographic histograms, what is being represented on the X-Axis
Specific exposure values captured by the image receptor
Destruction or alteration of medical records, such as a radiology report, by an unauthorized person, is referred to as:
Spoliation
“Touching a patient without permission or justification” is the legal definition of:
Battery
What group of drugs are used to speed up defecation?
Cathartics
Dynamic Range is defined as the:
Ability of an IR to capture a wide range of photon intensities that exit the patient
Which condition would be an indication for retrograde urethrography?
Urethral Obstruction
What is trapped when x-ray photons strike the phosphor layer of the CR imaging plate?
Electrons
The document in which patients identify the type of amount of nutritional and life-sustaining treatments desired at the end of life is referred to as?
Living Will
What 2 are included in the total filtration of the x-ray beam?
Inherent Filtration and Added Filtration
What is the electronic technique chart with preprogrammed technical factors called?
Anatomically programmed technique
The risk of cancer is estimated by calculating the:
Effective Dose
What is the unit for electric current
Ampere
The acronym ESE refers to:
Entrance Skin Exposure
Pathogenic microoganisms that require a living host’s cells to survive and reproduce are called:
Viruses
When is it acceptable for a radiographer to stand in the path of the primary beam?
A radiographer should never stand in the path of the primary beam
The range of radiation exposure that will produce a quality radiographic image is called:
Exposure Latitude
Which imaging study of the urinary system is a structural study rather than a functional study?
Retrograde Pyelogram
What does a histogram show in digital radiography?
Distribution of pixel values in an image
1 joule per kilogram (J?kg) is equal to:
1 Gray
Which would establish radiation protection standards for a stochastic effects of radiation?
Linear Non-Threshold Model
Increasing the OID from 1 inch to 2 inches will result in:
Decreased spatial resolution
Spatial resolution in digital radiography is defined as the:
Structural sharpness recorded in the radiograph
A small fluid-filled sac that helps reduce friction near a joint is called a:
Bursa
Which anatomical structure of the humerus is located just distal to the tubercles
Surgical Neck
What is considered an unintentional tort?
Negligence
Which is used to change the grayscale values in the recorded image to a new range of values in order to improve the displayed image?
Look-Up Table (LUT)
The proper medical term for a partial collapse of lung tissue is:
Atelectasis
Which projection best demonstrates the zygapophyseal joints of the C-Spine
Lateral
What is the minimum requirement for the evaluation of holes and cracks of shielding accessories?
Annually
A persons’s core body temperature is regulated by what structure?
Hypothalamus
What thickness of protective shielding is required in the Bucky slot cover of a Fluoro imaging unit?
0.25 mm Lead Equivalent
Which two examinations require the patient to be NPO for 8 to 12 hours prior to the procedure
Barium Enema and Upper GI
If the FOV remains unchanged, as the matrix size increases, the pixel size
Decreases
What technical adjustment should be made when a positive contrast media agents are used?
Increases kVp
What is the name for a disease or infection caused by a healthcare professional or by medical treatment?
Iatrogenic Disease
What two post-processing manipulations may lead to a legal issue?
Electronically changing the FOV and cropping anatomy off of an image and a technologist add their own prior to exposure
If the patient’s ASIS measures 17 cm to the table top, how much and in which direction should the x-ray be angles for an AP knee radiograph?
5 degrees caudad
Elimination of extraneous light from the edges of a digital radiographic image is achieved through:
The application of electronic masking
What compound is used in flat-panel image receptors to convert incoming x-ray photons directly into an electrical signal
Amorphous Selenium
When positioning an elbow for an AP projection, what is the relationship between the humeral epicondyles and the IR?
Parallel to the IR
What factor effects both the quantity and quality of the x-ray beam?
kVp
Keeping all other factors the same, increasing beam filtration results in which?
Decreased patient dose
During digital image formation, quantization occurs in the:
Analog-to-Digital Converter
What component is used to release information stored in a photostimulable phosphor (PSP) for processing?
Laser Light
To demonstrate the lesser tubercle of the humerus in profile medically, which projection of the shoulder should be obtained?
AP projection with internal rotation of the arm
Radiation-induced cataracts are classified as a:
Deterministic Effect
Which of the following principles defines the relationship between mA and exposure time
Reciprocity Law
When preparing for a hysterosalpingography study, the patient should be placed in what position?
Lithotomy Position
The general term for legal documents describing a person’s wishes if they become unable to make decisions about their medical care are called:
Advanced Heath Care Directives
An abnormally exaggerated posterior convex curve in the T-Spine is termed?
Kyphosis
What effect does an increase half-value layer (HVL) have on the quality of the x-ray beam?
Increased Quality
Main controlling factor of image receptor exposure?
mAs
Which is the primary absorber of x-ray photons during a fluoro procedure?
Patient
Sterilization using a autoclave involves the use of:
Pressurized steam
The flow of electrons from the cathode to the anode is referred to as:
Tube Current
Which anatomic structure can be used as an indicator of the spatial resolution?
Trabecular Bone
A reduction of normal number of erythrocytes circulating in the blood is called:
Anemia
What two can be considered paralanguage?
Tone of Voice and Vocal Identifiers
Changing the x-ray tube filtration from 3.5 to 4.0 mm would have what effect on the x-ray beam quality?
Increases Quality
What could cause excessive image receptor exposure while using automatic exposure control?
Incorrect radiation detector selection
What radiation measurement is used to assess how much biological damage is expected from the absorbed dose based on radiation types?
Equivalent Dose
The phosphor layer in a CR imaging plate is composed of:
barium fluorohalide