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RTE 1533 Wk 4 review

RTE 1533 Week 4 test review

QuestionAnswer
Where is the CR centered for a lateral projection of the facial bones? Zygoma, Midway b/w the EAM and the outer canthus
What is the angle between the OML and the place of the IR for a parietoacanthial (waters) projection 37 degrees
Which positioning line is placed perpendicular to the plane of the IR for the parietoacanthial projection Mentomeatal
Where does the CR exit for a modified parietoacanthial (modified waters) projection of the facial bones Acanthion
Which of the following technical factors do not apply to lateral nasal bone projections The Tech should not use AEC, The Tech should use a small focal spot, The Tech should use low to med. kV.
Which positioning line is placed perpendicular to the plane of the IR with a true lateral nasal bone projection Interpupillary
The CR must be placed parallel to the ___ positioning line for the superoinferior (tangential) projection of nasal bones glabelloalveolar
Which of the following points is not true about the oblique inferosuperior (tangential) projection of the zygomatic arches A grid must be used
Which projection best demonstrates the floor of the orbits Modified parietoacanthial (modified waters)
Which positioning line must be used with a 30 degree caudad angle for an AP axial projection of zygomatic arches OML
What is the angle between the midsagittal plane and the IR for a parieto-orbital oblique projection of the optic foramen 53 degrees
Which positioning line is placed perpendicular to the IR for the parieto-orbital oblique projection of the optic foramina AML
What is the maximum CR angulation used for the axiolateral oblique projection of the mandible 25 degrees
Why is the chin extended for an axiolateral oblique projection of the mandible To prevent superimposition upon the cervical spine
The modified law method for TMJ requires a ____ degree rotation of the skull and a ___ angle of the CR 15:15
What is the position of the skull for an axiolateral projection (Schuller method) of the TMJs True lateral position
What CR angle is required for the Schuller method projection of the TMJs 25 to 30 degree caudad
Sit: A radiograph of a lateral projection of the facial bones reveals that the mandibular rami are not superimposed. What positioning error is present Rotation
Sit: A radiograph of a parietoacanthial (waters) projection reveals that the petrous ridges are superimposed over the lower 30% of the maxillary sinuses. What specific positioning error (if any) led to this Insufficient extension
Sit: A radiograph of a parieto-orbital oblique projection for the optic foramen reveals that the optic foramen is projected into the inferior, outer orbital rim. Which modifiction is needed to make it diagnostic? Decrease the extension of the head and neck
Sit: A radiograph of an axiolateral oblique projection of the mandible with the head in a lateral position reveals that the mandibular body is greatly foreshortened. Which modifications is needed to make it diagnostic Increase the rotation of skull toward the IR
Sit: A patient enters the ER with facial bone injuries. The physician is concerned about a possible blow-out fracture of the left orbit. Which three projections would bet diagnose the injury Modified parietoacanthial, 30 degree PA facial bone, and lateral facial bone projections
Sit: A patient enters the ER with a possible nasal bone fracture. The physician is concerned about a possible bony nasal septum deviation and fractured nasal bones. Which routine would best diagnose these injuries Parietoacanthial,Lateral nasal bone, and superoinferior (axial) projections
A patient enters the ER with a possible fracture of the right zygomatic arch. Which of the following routines would best diagnose a possible fracture of this structure Submentovertex, bilateral oblique infersuperior (tangential), and AP axial projections
Sit: A radiograph of a PA projection of the sinuses reveals that the petrous ridges are projected over the ethmoid sinuses. Which of the following mods will eliminate this superimposition while not compromising diagnostic quality Increase extension of the head and neck slightly
Which of the following terms best describes a partial dislocation of a joint Subluxation
Which term describes a misalignment of a distal fracture fragment that is angled toward the midline? Varus deformity
Which type of fracture is defined as being crushed at the site of impact, producing two or more fragments? Comminuted
Which of the following fractures is described as an incomplete fracture with the cortex broken on one side of the bone? Greenstick
Which of the following is not a fracture but a subluxation? Nursemaids' elbow
Which of the following fractures involves the distal fifth metacarpal? Boxer's
Which of the following fractures usually involves the spine? Compression
This fracture is also called a “march fracture.” Stress fracture
A fragment of bone that is separated or pulled away by the attached tendon or ligament is termed: avulsion fracture
self-propelled, battery-driven mobile x-ray unit generally go up a maximum incline of ______. 7 degrees
Which of the three cardinal rules of radiation protection is the most effective means of feducing exposure during mobile and surgical procedures? Distance
Which of the C-arm orientations in general results in the greatest exposure to the operator’s head region if the distance from the patient is unchanged? (Patient is supine.) AP projection (x-ray tube above anatomy)
Where should the operator (or surgeon) stand when using a C-arm fluoroscopy unit in a horizontal CR position? Intensifier end of the C-arm
A 30 degree tilt of the C-arm x-ray tube from the vertical position will increase radiation exposure to the face and neck region of the operation standing next to the C-arm by approximately a factor of ____. 4
(T/F) An ankle series would best demonstrate a Pott's fracture. True
Which of the following projections will best demonstrate an air-fluid level within the skull with the patient recumbent? Horizontal beam lateral
The AP reverse Caldwell projection for a trauma skull exam requires the CR to be: 15 degree cephalad to the orbitomeatal line.
How is the CR aligned for the acanthiomeatal (reverse Waters) projection for the facial bones? Parallel to the mentomeatal line
Which of the following routines would best demonstrate a depressed or “ping-pong” fracture? AP and lateral skull projections
Situation: A patient enters the ER with a possible greenstick fracture. Which age group does this type of fracture usually affect? Pediatric
Which of the following fractures is often called a “reverse Colles” with anterior displacement of the distal radius? Smith’s
Typically, how much contrast media is injected by the surgeon during an operative cholangiogram? 6 to 8 ml
Which of the following is not an essential attribute for the surgical radiographer? Mastery of essential nursing skills
Which type of procedure would be performed in surgery to realign a fracture? Open reduction
An individual who prepares the sterile field and scrubs and gowns the members of the surgical team is a: scrub
“ Boost” exposure used during C-arm procedures are intended to: increase brightness of image
The primary pathologic indication for an operative cholangiogram is: biliary calculi
Which one of the following devices is best during a C-arm hip pinning procedure to protect the sterile environment? Shower curtain
What type of orthopedic fixators is commonly used to reduce midhumeral fractures? Intramedullary rod
What should a technologist do if the sterile environment is violated during a surgical procedure? Notify a member of the surgical team immediately.
A fracture in which the bone is broken into three pieces, with the middle fragment fractured at both ends, is termed: segmental fracture.
(T/F)The entire sterile gown, worn by the surgeon, is considered sterile. False
A health professional who prepares the OR by supplying it with the appropriate supplies and instruments is a: certified surgical technologist (CST).
Which one of the following devices is classified as an external fixators? Ilizarov device
A fracture that occurs though the pedicles of the axis (C2), with or without displacement of C2 or C3, is termed: hangman’s fracture
Asepsis is defined as a(n): absence of infectious organisms
When performing conventional imaging during an operative cholangiogram, the IR is placed in a special metal tray called a: pizza pan
The abbreviation ORIF refers to: open reduction internal fixation
Which of the following procedures is a nonsurgical procedure? Closed reduction
Subluxation is best described as a: partial dislocation.
Which of the following terms is currently most acceptable in describing child abuse? Nonaccidental trauma (NAT)
Which of the following factors should be the first consideration in controlling motion for the pediatric patient? Short exposure time
Which of the following immobilization devices is recommended for an erect abdomen projection on an 18‐month‐old patient? Pigg‐O‐Stat
What size stockinette is recommended for a small infant? 3 inches
(T/F) Fine sand should be used in sandbags for pediatric immobilization because it makes it more pliable. False
(T/F) Diapers may be left on for abdomen or pelvic exams if the technologist is sure there are no pins or other metallic items included. False
Which term describes the space between the primary and secondary growth centers? Epiphyseal plate
Which of the following pathologies is best demonstrated with a radiographic chest procedure? Cystic fibrosis
The CR should be directed to the level of____ for a lateral 2‐year‐old chest patient. the mammillary line
Which modality is commonly used for evaluating congenital hip dislocation in newborns? Ultrasound
Which modality is commonly used for evaluating and staging of tumors in young children without providing a high patient dose? MRI
(T/F)Gonadal shielding should not be used for any studies of the pelvis for bilateral hip evaluation False
(T/F)Children should not drink any fluid (including water and fruit juice) for 4 hours before an IVU. False
Which positioning line is perpendicular to IR for an AP projection of the pediatric skill? OML
Which of the following radiographic structures are evaluated to best determine tilt on a lateral pediatric skull projection? Orbital roofs
What is the NPO fasting period for a 2‐year‐old before an upper gastrointestinal series? 4 hours
Where is the CR centered for a KUB performed on an infant? 1 inch (2.5 cm) above the umbilicus
How much barium is given to a newborn during an upper gastrointestinal series? 2 to 4 ounces
(T/F) Latex enema tip should be used for pediatric barium enemas. False
Which of the following kV ranges is recommended for a pediatric VCUG for patients in infancy through age 18 years? 65 to 85
Created by: Joker71