chapter 5 - upper extremity self test pt1

which projection of the wrist corrects foreshortening of the scaphoid carpal bone?

PA with ulnar deviation

what is the appropriate collimated field for the AP and lateral projection of the humerus?

2 inches distal to the elbow and superior to the shoulder and 1 inch on the sides

what is the appropriate collimated field for the projections of the forearm?

2 inches distal to the wrist and proximal to the elbow and 1 inch on the sides

how many articulations does the humerus have? a: 2 b: 3 c: 4 d: 5

3

what is the appropriate collimated field for the AP projection of the elbow?

3 inches proximal and distal to the elbow joint and 1 inch on the sides

what is the direction and amount of central ray angulation for the axiolateral projection (coyle method) to demonstrate the radial head and capitulum?

45 degrees toward the shoulder

from the prone position, how many degrees should a finger be rotated for the lateral projection of that finger?

90 degrees

which projection and position of the upper extremity best demonstrates the coronoid process in profile and free of superimposed?

AP oblique of the elbow in medial rotation position

which projection of the elbow best demonstrates the radial head free of bony superimposition?

AP oblique, lateral rotation position

which bony process is located on the anterior surface of the proximal humerus? a: lesser tubercle b: greater tubercle c: lateral epicondyle d: medial epicondyle

lesser tubercle

which joint is an ellipsoidal joint? a: interphalangeal b: scapulohumeral c: carpometacarpals d: metacarpophalangeal

metacarpophalangeal

what other name refers to the carpal bone known as the scaphoid?

navicular

which depression is located on the posterior surface of the distal humerus?

olecranon process

what other name refers to the carpal bone known as capitate?

os magnum

what part of the humerus is where all the breaks happen?

surgical neck

which positioning characteristics best indicates that the humerus is properly positioned for the AP projection of the humerus?

the humeral epicondylar coronal plane is parallel with the IR

with reference to the plane of the IR, how is it determined that the humerus is properly positioned in true lateral position?

the humeral epicondylar coronal plane is perpendicular

which evaluation criterion indicates that the humerus was properly positioned for the AP projection?

the humeral head and greater tubercle are both seen in profile

which evaluation criterion indicates that the humerus was properly positioned for the lateral projection?

the lesser tubercle is seen in profile

for the PA projection of the hand, where should the central ray be directed?

third metacarpophalangeal joint

which wrist-positioning maneuver opens the carpal interspaces on the lateral side of the wrist? a: hyperflexion b: hyperextension c: ulnar deviation d: radial deviation

ulnar deviation

which structure is located on the medial aspect of the distal forearm?

ulnar styloid process

what other name refers to the carpal bone known as hamate?

unciform

how should the hand and wrist be positioned for the PA oblique projection of the wrist?

with the hand pronated, rotate the wrist radial side up

which bones are classified as short bones? carpals vertebrae phalanges metacarpals

carpals

which bones comprise the palm of the hand?

carpals

which articulation of the upper extremity is a saddle joint that allows the thumb to oppose the fingers? a: radiocarpal b: distal radioulnar c: proximal radioulnar d: first carpometacarpal

first carpometacarpal

for the axiolateral projection (coyles method) of the elbow to demonstrate the coronoi process, the elbow is: a: flexed 80 degrees b: flexed 90 degrees c: in hyperflexion d: in hyperextension

flexed 80 degrees

how should the hand be positioned for the PA oblique projection of the hand?

from the prone position, rotate the hand radial side up

what other name refers to the carpal bone known as trapezium?

greater multangular

which two structures articulate to form the proximal radioulnar joint?

head of the radius and radial notch of the ulna

which two structures articulate to form the distal radioulnar joint?

head of the ulna and ulnar notch of the radius

which type of joint is the elbow?

hinge

which artiulation do the trochlea and the trochlear notch form?

humeroulnar

when performing an image of a forearm in a fiberglass cast, approximately which compensation to exposure technique should occur? a: increase mAs 25%, or 4 kVp b: increase mAs 50%, or 8 kVp c: decrease mAs 25%, or 4 kVp d: decrease mAs 50%, or 8 kVp

increase mAs 25%, or 4 kVp

which joint is a hinge-type joint? a: interphalangeal b: scapulohumeral c: carpometacarpal d: metacarpophalangeal

interphalangeal

for the AP projection of the forearm, which positioning step should be taken to prevent radial cross-over?

keep the humeral epicondylar coronal plane parallel with the IR

which projection of the elbow best demonstrates the olecranon process in profile?

lateral projection

one way the lateral image of a humerus, produced with the patient in the lateral decubitus position and the IR placed between the arm and thorax, appears different from the lateral position with the patient standing is that the former demonstrates:

less than the entire humerus

what other name refers to the carpal bone known as trapezoid?

lesser multangular

what is the appropriate collimated field for the PA projection of the hand?

1 inch on all sides, including 1 inch proximal to the ulnar styloid

which wrist projection requires that the IR be inclined toward the elbow at an angle of 20 degrees from horizontal?

PA axial (stecher's method)

which should be used to image the radial head on a trauma patient?

axiolateral projection (coyle method) of the elbow joint

what is the central ray orientation for the axiolateral projection of the elbow (coyles method) to demonstrate the coronoid process when the patient is seated? a: angled 45 degrees toward the shoulder b: angled 45 degrees away from the shoulder c: angled 45 degrees cephalic d: angled 45 degrees caudal

b: angled 45 degrees away from the shoulder

which depression is located on the anterior surface of the distal humerus? a: radial notch b: coronoid fossa c: olecranon fossa d: intertubercular groove

coronoid fossa

which carpal bone has only one name?

pisiform

which joint of the hand is formed by the articulation of the head of a metacarpal with a digit? a: carpometacarpal b: metacarpophalangeal c: distal interphalangeal d: proximal interphalangeal

proximal interphalangeal

Which bony structures are located on the proximal end of the ulna?

radial notch, olecranon process, coronoid process

which bony structures are located on the proximal end of the ulna? a: radial notch, styloid process, ulnar head b: radial head, olecranon process, ulnar head c: radial head, styloid process, coronoid process d: radial notch, olecranon process, coronoid process

radial notch, olecranon process, coronoid process

which structure is located on the lateral aspect of the distal forearm?

radial styloid process

the PA projection of the wrist, which positioning maneuver should be used to place the anterior surface of the wrist in contact with the IR? a: ulnar-flex the hand b: radial-flex the hand c: slightly arch the hand d: pronate the hand in full extension

slightly the arch the hand