Chapter 3: Abdomen Flashcards
An AP supine abdominal image with accurate positioning demonstrates:
1. the outline of the psoas major muscles and kidneys
2. the diaphragm domes located inferior to the 10 posterior rib
3. no rotation of the pelvis
4. the long axis of the vertebral column is centered on projection
1, 3, and 4
At what level is the CR directed for a supine AP projection of the abdomen?
iliac crest
Abdomen projections should be exposed on:
Expiration
Which one of the following structures must be demonstrated on an AP Supine Abdomen?
- symphysis pubis
- diaphragm
- xiphoid process
- ischial tuberosities
Symphysis pubis
Which one of the following structures must be demonstrated on an AP Upright Abdomen image?
diaphragm
Which topographic landmark corresponds to the level of L2/L3?
Inferior costal margin
Which topographic landmark corresponds to the level of L4-5?
Iliac crest
Which two technical conditions must be met in a decubitus position?
The patient must be lying down and the central ray parallel to the floor.
Which projection or position will best demonstrate free intraperitoneal air in the abdomen?
Erect AP abdomen projection
Which projection is performed to demonstrate free air or gas in the abdominal cavity when the patient is unable to stand?
Left lateral decubitus
What CR centering should be used for a lateral decubitus AP projection of the abdomen?
2 inches above the iliac crest
Two AP projections in the supine position with the IR oriented crosswise may be needed for patients who have a body type that is:
Hypersthenic
For an upright AP abdomen projection, the
1. ASISs are positioned at equal distances from the IR.
2. patient remains in an upright position at least 5 to 20 minutes before the image is obtained.
3. symphysis pubis should be included.
4. patient is instructed to take a deep inspiration before the image is obtained.
1 and 2
For an Acute Abdominal Series, the required projection are
1. PA chest
2. Lateral chest
3. KUB
4. Upright / Erect Abdomen
1, 3 and 4
For the Erect Abdomen (AP projection), place the top of the IR at the level of the ____
Axilla