Procedures: Unit 5 Post Exam Test Questions

A general positioning rule is to place the long axis of the part ____ to the long axis of the image receptor.

parallel

Why is it important to keep the phalanges parallel to the IR for a PA oblique projection of the hand?

Prevents foreshortening of phalanges and obscuring of interphalangeal joints

How many carpal bones are found in the wrist?

8

How should the original kV range be changed with a fiberglass cast applied for a wrist or forearm radiographic procedure?

increase 3-4 kV

A fracture resulting from opposite ends of a long bone being twisted in opposite directions

spiral

The AP oblique bilateral hands projection ( ball catchers) is performed to evaluate for early signs of:

rheumatoid arthritis

The position whereby the second through fifth metacarpals and digits will be superimposed and centered to the IR with fingers flexed and thumb lightly touching first finger (2nd digit) is the:

lateral flexion

Which of the following carpals articulates with the radius?

Lunate

Where is the CR centered for a PA projection of the hand?

At the third metacarpophalangeal joint

Which of the carpal bones is considered to be the largest?

Capitate

The centering point for a Norgaard method of the AP oblique bilateral position of the hands is:

Midpoint between both hands at level of 5th MCP joint

A fracture in which a portion of the bone protrudes through the skin

compound

An ellipsoidal joint allows movement in __ directions

four

Rheumatoid arthritis is three times more common in men than women.

False

Situation: A radiograph of a PA projection of the hand reveals that the distal radius and ulna and the carpals were cut off. What should the technologist do to correct this problem?

Repeat the PA projection to include all the carpals and about 1 inch of the distal radius and ulna

Which of the following is the most common primary cancerous bone tumor?

multiple myeloma

A ginglymus joint can also be referred to as:

hinge joint

Situation: A patient enters the ED with a possible scaphoid fracture. The patient is unable to assume the ulnar deviation position. Which of the following positions should be performed to confirm the diagnosis?

Modified Stecher

What degree of obliquity is required for the PA oblique projection of the wrist?

45

The pea shaped carpal bone is the

pisiform

The CR is directed ___ for the Norgaard method

perpendicular

The SID recommended for radiography of the hand is:

40 inches

A condition where a bone is displaced form the joint or when the articular contact of bones that make up a joint is completely lost

dislocation

How much CR angulation to the long axis of the hand is required for the tangential, inferosuperior projection to demonstrate the carpal sulcus (canal)?

25-30

What special projection of the wrist is ideal for demonstrating possible calcification in the dorsal aspect of the carpals?

Carpal bridge

A joint effusion is an inflammation of the bursae or fluid filled sacs that enclose the joints and generally involves the formation of calcification in associated tendons.

False

Which of the following projections of the wrist will best demonstrate the wrist joint and intercarpal spaces if the patient can assume this position?

AP

What is the name of the joint found between the proximal and distal phalanges of the first digit?

interphalangeal

All digits possess a PIP and DIP joint

False

The radoiocarpal (wrist) joint possesses an ___ type of joint movement

ellipsoidal

The first caropmetacarpal joint is classified as a(n) ____ joint

sellar

Where is the CR directed for tangential projection of the wrist for the carpal bridge?

1 ½ inches proximal to wrist joint

What is the most commonly fractured carpal bone?

scaphoid

Situation: A patient enters the emergency department with a Smith fracture. Which region of the upper limb must be radiographed to demonstrate this injury?

Wrist

The interphalangeal joints have a(n) ___ type of movement

ginglymus

Situation: A radiograph of a PA oblique of the hand reveals that the midaspect of the fourth and fifth metacarpals are superimposed. What specific positioning error has been committed?

Excessive rotation of the hand and/or wrist

How much rotation of the hands is required for the AP oblique bilateral (norgaard method) hand projection?

45

How many phalanx are present in the hand?

14

Carpal tunnel syndrome is more common in Middle Aged women than in Middle Aged men

true

Situation: 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 foreign body?

PA and lateral in extension projections

The second most common type of primary canerous bone tumor is

chondrosarcoma *

The joint found between the base of the third metacarpal and carpal bone is the:

carpometacarpal

The first metacarpophalangeal joint has a(n) ____ type of joint movement

Ellipsoidal

Which special projection of the wrist will open up the interspaces on the ulnar/medial side of the wrist

ulnar deviation

Fracture of distal radius with posterior displacement

Colles fracture

Transverse fracture through fifth metacarpal neck

Boxers fracture

Fracture of distal radius with anterior displacement

Smith fracture

Fracture and dislocation of posterior lip of distal radius involving the wrist joint

Bartons fracture

Fracture of base of first metacarpal

Bennetts fracture

Compression of the median nerve as it passes through the center of the wrist

carpal tunnel syndrome

Type of fracture that results from severe stress to a tendon or ligament in a joint region resulting in a fragment of bone being separated or pulled away by the attached tendon or ligament

avulsion

Which specific anatomy is better visualized with a fan lateral as compared with the other lateral projections of the hand?

Phalanges