Chest PA Flashcards
1
Q
P.A of chest is done to demonstrate
A
- heart
- Lung field
- Mediastinum
- Diaphragm and chest wall
- Possible pleural or pulmonary pathology
2
Q
Patient position in PA of chest
A
- IR 35x35 or 34x43 cmus selected depending on the size of the patient.
- The upper border of the IR should be 5cm above the shoulders
- Patient facing the IR
- Neck extended with chin on top of the upper border of the IR
- Shoulders are rotated forward and pressed downward in contact with the IR
3
Q
Special positioning situations dealing with breasts in PA projection
A
- Large pendulous breasts
- Nipple shadows
- Singular mastectomy
- Augmentation mammoplasty
- Midcoronal plane positioning and rotation
4
Q
Large pendulous breasts
A
- large pendulous breasts may obscure the lung bases as the add a dense thickness to the lung bases.
- Thus density is reduced by elevating and separating the breasts before resting the patient against the upright IR.
5
Q
Nipple shadows
A
- Nipples appear as soft tissue masses on the radiograph.
- When in question the projection is repeated after attaching lead markers on the nipples.
6
Q
Singular mastectomy
A
*female patients with one breast removed.
* The side which the breasts was removed may need to be placed at a grater Object image distance (OID) than the opposite side to prevent rotation.
7
Q
Augmentation mammoplasty
A
- Is a surgical procedure to enhance the size and shape of a woman’s breast.
- They’re medical devices with a solid silicone rubber shell that is filled with either saline solution or elastic silicone gell.
8
Q
Midcoronal plane positioning and rotation
A
- Positioning the midcoronal plane parallel with the IR prevents chest rotation in PA chest and lung demonstrates a projection with symmetrical lung fields , clavicles and Posterior ribs.
9
Q
Types of midcoronal plane positioning and rotation
A
- superior midcoronal plane tilted anteriorly
*Superior midcoronal plane tilted posteriorly
