Wrist (A) Flashcards
(15 cards)
1
Q
2 Views
A
PA and lateral
2
Q
centering point
A
midway between radial and ulnar styloid processes
3
Q
position of patient
A
- seated alongside the table, with affected side nearest to the table.
- ask the patient to pronate, hand/wrist placing them flat on the image receptor.
4
Q
position of patient (PA view)
A
- elbow joint is flexed to 90 degrees and the arm is abducted, such that anterior aspect of the forearm an the palm rest on the detector.
- if patients mobility allows shoulder joint should be at the same height as the forearm.
5
Q
receptor
A
- wrist joint is placed central to the image receptor and adjusted to include the lower part of the radius and ulna and the proximal two-thirds of the metacarpals.
6
Q
patient positioning (lateral view)
A
elbow joint is extended to bring the medial aspect of the forearm, wrist and hand in contact with the table. Radial and ulnar styloid processes need to be superimposed
7
Q
detector size
A
18 cm x 24 cm
8
Q
SID
A
100 -115cm
9
Q
exposure factors
A
60 kV/ 1 mAs
10
Q
collimation
A
- collimate to include all 8 carpal bones, metacarpal heads and distal third of radius and ulna
- laterally to include skin margins
- distal to the midway up the metacarpals
- proximal to include 1/3 of the distal radius and ulna
11
Q
immobilisation devices
A
sandbag is used to immobilise the forearm
12
Q
tube angulation
A
no
13
Q
anatomical side marker
A
lateral aspect of the wrist within primary beam
14
Q
alternative projections
A
scaphoid series
15
Q
typical injuries
A
smiths fracture, scaphoid fracture and fracture dislocation
