Forearm & Elbow
How many degrees is the CR angled for the AP forearm? a) 0 degrees b) 7 degrees c) 5-7 degrees d) 10 degrees
a) 0 degrees
The forearm consists of which of the following bones? 1) ulna 2) radius 3) humerus a) 1 and 2 b) 1 and 3 c) 2 and 3 d) 1, 2 and 3
a) 1 and 2
Which of the following projections of the elbow will demonstrate the olecranon process seated within the olecranon fossa? 1) AP, fully extended 2) AP oblique, lateral rotation 3) AP oblique, medial rotation a) 1 and 3 only b) 1, 2 and 3 c) 1 and 2 only d) 2 and 3 only
a) 1 and 3 only
When performing the trauma axial lateral (Coyle method) for the radial head, how should the patient be positioned and the CR directed? a) Elbow flexed 90°, CR angled 45° toward shoulder b) Elbow flexed 80°, CR angled 45° away from shoulder c) Elbow flexed 90°, CR perpendicular to image receptor d) Elbow flexed 90°, CR angled 30° toward shoulder
a) Elbow flexed 90°, CR angled 45° toward shoulder
Which of the following structures is considered to be most distal? a) Head of ulna b) Radial tuberosity c) Coronoid process d) Olecranon process
a) Head of ulna
Where does the posterior fat pad lie a) behind the olecranon fossa b) in front of the olecranon fossa c) behind the olecranon process d) above the radius
a) behind the olecranon fossa
Which would be in profile with the internal oblique of the elbow a) coronoid process b) radial head c) lateral epicondyle d) olecranon process
a) coronoid process
The capitulum of the humerus articulates with the: a) radial head b) trochlea c)epicondyles d) coronoid process
a) radial head
What is a baseline technique for a forearm?
60@2
What is a baseline technique for an elbow?
Which of the following position(s) will demonstrate the radial head and tuberosity free of superimposition? 1) Coyle method for the radial head 2) Medial rotation oblique 3) Lateral rotation oblique a) 1 only b) 1 and 3 only c) 1 and 2 only d) 2 only
b) 1 and 3 only
Which of the following statements is TRUE concerning an AP projection of the forearm? a) The head of the ulna should be entirely superimposed over the radius distally. b) The humeral epicondyles should be parallel to the IR. c) The elbow should be flexed 90°. d) The humeral epicondyles should be perpendicular to the IR.
b) The humeral epicondyles should be parallel to the IR
Which of the following is shown "in profile" on a lateral projection of the elbow? a) radial neck b) olecranon process c) radial head d) humeral epicondyles
b) olecranon process
The elbow contains which of the following fat pads/stripes? 1) Pronator 2) Anterior 3) Posterior a) 1 only b) 1, 2 and 3 c) 2 and 3 only d) 1 and 3 only
c) 2 and 3 only
What basic projection of the elbow best demonstrates the radial head and tuberosity free of superimposition? a) AP b) lateral c) AP oblique with lateral rotation d) AP oblique with medial rotation
c) AP oblique with lateral rotation
Which of the following is demonstrated in profile on an AP oblique projection of the elbow in medial rotation? a) Olecranon fossa b) Radial tuberosity c) Coronoid process d) Lateral epicondyle
c) Coronoid process
Which routine projection of the elbow best demonstrates the olecranon process in profile? a) Medial rotation oblique b) AP c) Lateral d) Lateral rotation oblique
c) Lateral
What is the purpose of performing the AP partially flexed projections of the elbow? a) To demonstrate any possible elevated fat pads b) To provide a view of the radial head and capitulum c) To provide an AP perspective if patient cannot fully extend elbow d) To separate the radial head from the ulna
c) To provide an AP perspective if patient cannot fully extend elbow
For the AP projection of the elbow, the humeral epicondyles are: a) perpendicular to the IR b) superimposed over each other c) parallel to the IR d) not clearly seen
c) parallel to the IR
For the AP projection of the elbow the hand is: a) pronated b) placed in the lateral position c) supinated d) placed in the 45 degree oblique position
c) supinated
For the lateral projection of the elbow, the elbow joint should be flexed: a) 25 degrees b) 75 degrees c) 45 degrees d) 90 degrees
d) 90 degrees
What action/motion will cause the proximal forearm to cross over each other a) supination b) radial deviation c) external rotation d) pronation
d) pronation
To take advantage of the anode heel effect when imaging a forearm: a) the elbow is positioned at the anode end of the x-ray tube. b) a 65- to 75-kVp technique is used. c) a 55- to 65-kVp technique is used. d) the wrist is positioned at the anode end of the x-ray tube.
d) the wrist is positioned at the anode end of the x-ray tube
