Chapter 4 Test Review

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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)


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