Unit 4 Post Exam Test Questions

Why is it recommended that the PA oblique (medial rotation) projection be performed rather than the PA oblique (lateral rotation) for the second digit of the hand?

minimizes object image-receptor distance (OID)

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

interphalangeal

Nuclear medicine is generally more sensitive than radiography for assessing bones of the upper extremity for either metastatic bone lesions or stress fractures.

True

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

carpometacarpal

A ginglymus joint can also be referred to as a ___ joint

hinge

Advanced Paget’s disease

increase

Bursitis

no change

Advanced osteoporosis

decrease

Bone tumors

no change

Osteomyelitis

no change

Carpal Tunnel syndrome

no change

small joint effusion

no change

Advanced rheumatoid arthritis

decrease

Which of the following is NOT one of the parts of a phalanx?

Apex

A “skiers thumb” is an injury of the:

ulnar collateral ligament

A patient enters the ED with a possible Bennett’s fracture. Which of the following routines should be performed to confirm this diagnosis?

Thumb

The radiographic criteria for a true lateral finger indicate equal concavity of the anterior and posterior aspects of the phalanges.

True

The second most common type of primary cancerous bone tumor is:

Osteogenic sarcoma

A proper AP thumb radiograph must include the first CMC joint

True

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

increase 3-4 kV

In the thumb, the first metacarpal articulates with which carpal at the carpometacarpal joint?

Trapezium

Local or generalized infection of bone or bone marrow caused by bacterial introduced by trauma or surgery is a condition termed:

Osteomyelitis

How many carpal bones are found in the wrist?

8

From a pronated position, which of the following is required for PA oblique projection of the fourth digit of the hand?

45 degree lateral rotation

Another name for osteoarthritis is:

degenerative joint disease

The Folio method is performed to rule out a displaced fracture of the thumb

False

Grids are generally not required unless the anatomy measures greater than ___ cm in thickness

10

Gonadal shielding is not necessary when performing radiographic exams of the hand because it is far away from a patients gonads.

False?

The CR placement for an AP axial projection (modified Roberts) of the thumb is at the:

first carpometacarpal joint

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

ginglymus

Where is the central ray placed for a PA projection of the third digit?

at the proximal interphalngeal joint

An elipsoidal joint allows movement in __ directions

four

Fracture at base of first metacarpal

Bennetts fracture

transverse fracture through the 5th metacarpal neck

boxers fracture

partial dislocation of a joint

subluxation

fracture where fragment of bone is separated or pulled away by the attached tendon or ligament

avulsion

fracture where bone fragments are driven into each other

impaction

Where is the CR placed for an AP projection of the first digit?

at the metacarpophalangeal joint

Which of the following refers to accumulated fluid in the joint cavity?

Joint effusion

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

parallel

What CR angle is required with the modified Roberts method?

15 degrees proximally (towards wrist)

A patient comes to the radiology department with a possible tear of the ulnar collateral ligament. The patient complains of discomfort near the thumb region. Basic thumb projections do not demonstrate any type of fracture or dislocation. Which of the following projections can be performed to confirm an injury to the ulnar collateral ligament?

Foliio method

A minimum of ___ of the metacarpal should be demonstrated on PA radiographs of the 2-5th digits

1/3

The Folio method requires a bilateral projection of the thumbs be taken with one single exposure

true

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