Determining Positioning Routines Flashcards
1
Q
General Principles
A
- Minimum of two opposing projections (90 degrees)
- Minimum of three projections when joints are in the area of interest.
2
Q
Exceptions to the General Principles rules
A
Postreduction of upper and lower limbs generally requires only 2 projections for fracture alignment.
Pelvis study requires 1 AP unless a hip injury is suspected.
3
Q
Why do we do a minimum of 2 opposing projections?
A
- Superimposition of anatomic structures: Certain conditions (fractures, tumors) may not be visualized from one side.
- Localization of Lesions or Foreign bodies: Determining the location of lesions or foreign bodies.
- Determination of alignment of fractures: Needed to fully visualize the fracture and determine alignment following surgery.
4
Q
How many Projections?
Forearm
A
2
5
Q
How many Projections?
Humerus
A
2
6
Q
How many Projections?
Femur
A
2
7
Q
How many Projections?
Hips
A
2
8
Q
How many Projections?
Tibia-Fibula
A
2
9
Q
How many Projections?
Chest
A
2
10
Q
What projections are used when joints are in the area of interest?
A
AP, PA, Lateral, and Oblique.
11
Q
How many Projections?
Fingers
A
3
12
Q
How many Projections?
Toes
A
3
13
Q
How many Projections?
Hand
A
3
14
Q
How many Projections?
Wrist
A
3
15
Q
How many Projections?
Elbow
A
3
