Chapter 4 Test Review
When performing an AP projection of the forearm the hand must be in which position?
Supine
Which projection is recommended for the lateral view of the second digit of the hand?
The lateral projection
Which of the following structures is considered to be most proximal?
The olecranon process
When the fingers get away from the thumb to perform the special view of the Scaphoid/ Navicular (wrist hand pronated PA projection) this describes?
The posteroanterior ulnar deviation
Olecranon process is part of the
The proximal end of the ulna
Where is the CR centered for a PA projection of the hand?
Third metacarpal joint
Structure E is the(Wrist)
Trapezium
Which carpal articulates with the base of the thumb?
Trapezium
Structure F is the(Wrist)
Trapezoid
Which carpal bones is the smallest?
Trapezoid
True or False: Colles' fracture is a fracture of the distal radius with posterior and lateral displacement of the distal fragment
True
Which routine projection of the elbow best demonstrates an elevated or visible posterior fad pad?
True lateral with 90 degree flexion
Which bone of the upper limb contains process?
Ulna
A patient enters the emergency department (ED) with a Smith fracture. Which region of the upper limb must be radiographed to demonstrate this injury?
Wrist and Forearm
How many carpal bones are found in the wrist?
8
Which routine projection of the elbow demonstrates the radial head and tuberosity free of superimposition?
AP oblique with lateral rotation
What is the purpose of performing the AP partially flexed projections of the elbow?
AP perspective if patient cannot fully extend elbow.
When performing a lateral position for an elbow, all of the following are true is
At 90 degrees elbow flexion, the medial border of the palm and forearm are kept in contact with the tabletop The shoulder, elbow and wrist are kept in the same horizontal plane Rotate the hand so the thumb is pointing towards the ceiling, ensuring all aspects of the arm from the wrist to the humerus are in the same plane
Where is the central ray (CR) placed for a PA projection of the third digit?
At the proximal interpharangeal joint
Structure G is the(Wrist)
Capiate (pic)
Structure G is the
Capitate
Which of the carpal bones is considered to be the largest?
Capitate
The joint found between the base of the third metacarpal and carpal bone is the
Capometacarpal joint
Structure B is the
Carpometacarpal joint of first digit
Which routine projection of the elbow best demonstrates the olecranon process in profile?
Elbow internal oblique view
A radiograph of an AP projection of the elbow reveals that there is complete separation of the proximal radius and ulna. What positioning error has been committed?
Excessive lateral rotation
Where is the central ray for an AP projection of the thumb?
First MCP
Structure H is the (Wrist)
Hamate
What is the name of the hooklike process extending anteriorly from the hamate?
Hamulus or Hamular Process
In an anatomical position, which of the following structures is considered most inferior or distal?
Head of Ulna
What is the name of the joint found between the proximal and distal phalanges of the first digit?
Interphalangeal Joint (IP)
Structure K is the
Interphalangeal joint of the first joint (IP)
What two bony landmarks are palpated for positioning of the AP elbow?
Lateral and Medial epicondyles
Which projection of the thumb is achieved naturally by placing the palmer surface of the hand in contact with the IR?
PA Oblique
A patient arrives in radiology with a metal foreign body in the palm of the hand. Which of the following hand routines should be performed on this patient to confirm the location of the foreigns body?
PA and lateral in extension projections
Grids are generally not required unless the anatomy measures greater than
10 cm
What is the preferred SID for radiography on the finger?
40 inches
How much obliquity is required for a PA oblique projection of the hand?
45 degrees
How much rotation of the humeral epicondyles is required for the AP medial oblique projection of the elbow?
45 degrees
Structure A is the(Wrist)
Scaphoid
Which of the following carpals articulates with the radius?
Scaphoid
Structure D is the
Scaphoid (pic)
Which is the most commonly fractured carpal bone?
Scaphoid fractures
Short scale (high) contrast is the result of
Low Kilovoltage peak (kVp)
A radiograph of the elbow demonstrates the radius directly superimposed over the ulna and the coronoid process in profile. Which projection of the elbow has been performed?
Medial rotation oblique
A general positioning rule is to place the long axis of the part_____to the long axis of the image receptor
Parallel
How should the humeral epicondyles be aligned for a lateral projection of the elbow?
Perpendicular
Which specific anatomy is better visualized with a fan lateral as compared with the other lateral projections of the hand?
Phalanges
Which of the following actions will lead to the proximal radius crossing over the ulna?
Pronation of the hand
Structure I is the
Proximal Interphalangeal joint of the second joint (PIP)