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Merrill's Radiographic Positioning and Procedures
Midterm Study Guide
80
Medical
Not Applicable
10/08/2011

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Cards

Term
How many pairs of ribs are in the human body?
Definition
12 (24 total ribs)
Term
How many true ribs are there?
Definition
14 total (ribs 1-7)
Term
How many false ribs are there?
Definition
10 total (ribs 8-12)
Term
How many floating ribs are there?
Definition
4 total (ribs 11 & 12)
Term
The Carina is located at:
Definition
T5
Term
The trachea is ______ to the esophagus 
Definition
Anterior
Term
The muscle of inspiration is the _____
Definition
The diaphragm
Term
Pneumothorax
Definition
air in the pleural cavity that can result in a collapsed lung
Term
For an AP lordotic chest, where is the CR located?
Definition
perpendicular to mid-sternum
Term
In a decubitus CXR, if fluid is to be shown, the area of interest should be pointing which direction (up or down)?
Definition
Down
Term
In a decubitus CXR, if air is to be shown, should the area of interest be pointed up or down?
Definition
Up
Term
Bronchitis
Definition
inflammation of the bronchi
Term
Metastases
Definition
transfer of a cancerous lesion from one place to another
Term
Pleural Effusion
Definition
collection of fluid in the pleural cavity
Term
_______ is an acute infection in the lung parenchyma
Definition
Pneumonia
Term
Situs Inverus
Definition
entire organs of the body are reversed
Term
Pectus Excavatum
Definition
"funnel chest" pt. has depressed sternum and costal flaring
Term
Pectus Carinatum
Definition
"barrel chested"
Term
Cardiomegaly
Definition
enlarged heart
Term
Abd Series consists of what:
Definition
PA chest, upright abd, and KUB
Term
Acute Abd series are done to r/o what?
Definition
free air, bowel obstruction, and infections
Term
Right colic flexure is aka:
Definition
hepatic flexure
Term
Left colic flexure is aka:
Definition
splenic flexure
Term
The three important muscles of the abd (x-ray):
Definition
2 Psoas and diaphragm
Term
Psoas do what?
Definition
allow flexion of the femurs
Term
Which quadrant has the following: liver, gallbladder, right colic (hepatic) flexure, duodenum, head of the pancreas, right kidney, and right suprarenal gland?
Definition
RUQ
Term
Which quadrant of the abd has the following: spleen, stomach, left colic (splenic) flexure, tail of pancreas, left kidney, left suprarenal gland?
Definition
LUQ
Term
Which quadrant has: ascending colon, appendix, cecum, 2/3 of ileum, ileocecal valve?
Definition
RLQ
Term
Which quadrant has: descending colon, sigmoid colon, 2/3 of jejunum
Definition
LLQ
Term
True or False: a sthenic pt. will require two 14x17 films crosswise for an abd projection.
Definition
False
Term
The head of the pancreas is nestled in the C-loop of the duodenum. This is called what?
Definition
"the romance of the abdomen"
Term
Pear-shaped organ located on inferior surface of the liver:
Definition
Gallbladder
Term
Gallbladder is high and away from the midline in ________ body habitus
Definition
hypersthenic
Term
The gallbladder is low and near the spine in ______ body habitus
Definition
asthenic
Term
True or False: the spleen is located in the RUQ?
Definition
False: LUQ
Term
L4-L5 is the approximate location of what?
Definition
Iliac Crests
Term
Choose all that apply - A properly exposed abdominal radiograph will exhibit the: 1. psoas muscles, 2. lower border of the liver, 3. transverse processes of the lumbar vertebrae.
Definition
All 3 apply
Term
True or False: A lateral projection of the abdomen can be performed w/ the pt. placed in either the right lateral recumbent position or the left lateral recumbent position.
Definition
False
Term
_________ is telescoping of a section of bowel into another loop, creating an obstruction.
Definition
Intussusception
Term
Which body habitus would you most likely put the film crosswise for a CXR?
Definition
Hypersthenic
Term
_________ is to decrease an angle between parts.
Definition
Flexion
Term
W/ reference to the cassette, how are the midcoronal plane and the midsagittal plane positioned for the lateral projection of the chest?
Definition
Midcoronal = perpendicular; Midsagittal = parallel
Term
What is the name of the prominence or ridge seen when looking down into the bronchus where it divides into the right and left bronchi?
Definition
Carina
Term
dextrocardia
Definition
heart is on the right side of the body
Term
Why would the chest most likely be demonstrated using two PA projections ( in which the pt. is seen in suspended inspiration and suspended expiration)?
Definition
to demonstrate pneumothorax
Term
How many bones are in the hand?
Definition
27 total (14 phalanges, 5 metacarpals, 8 carpals)
Term
What two bony processes are located on the proximal end of the ulna?
Definition
olecranon and coranoid
Term
Which structure of the distal humerus does the radial head articulate?
Definition
capitulum
Term
For the lateral projection of the wrist, how should the elbow be positioned?
Definition
at a 90-degree angle
Term
For a lateral projection of the wrist, which surface of the wrist should be in contact w/ the IR?
Definition
the medial side
Term
How many degrees and in which direction should the central ray be directed if it cannot be directed perpendicular to the IR becuase the pt. is unable to elevate the unaffected shoulder? (Transthoracic)
Definition
10-15 degrees cephalic
Term
What is the proper arm position for the Grashey Method?
Definition
Abducted w/ a slightly internal rotation
Term
Which projection of the shoulder best demonstrates the greater tubercle of the humerus in profile?
Definition
AP external shoulder
Term
Which projection of the upper limb should be performed to demonstrate a fracture of the proximal humerus when the arm cannot be abducted?
Definition
Transthoracic
Term
In which body position should the pt. be placed to demonstrate the left shoulder w/ the PA oblique projection (scapular Y)?
Definition
LAO
Term
Which projection of the shoulder joint requires that the pt. be rotated until the midcoronal plane forms an angle of 45-60 degrees w/ the plane of the IR?
Definition
PA Oblique
Term
How many degrees and in which direction should the central ray be directed for the PA axial projection of the clavicle?
Definition
15-30 degrees caudad
Term
Which evaluation criterion indicates that the humerus was properly positioned for the AP projection?
Definition
The humeral head and greater tubercle are both seen in profile.
Term
With reference to the IR, how should the humeral epicondyles be positioned for the AP projection of the shoulder w/ the shoulder in neutral rotation?
Definition
45 degrees medial oblique
Term
When performing AP projections of the shoulder, to where should the CR be directed?
Definition
1 inch inferior to the coracoid process
Term
Which oblique projection of the upper limb best demonstrates the radial head free of bony superimposition?
Definition
AP lateral oblique of the elbow
Term
Which projection of the shoulder joint requires the pt. to be rotated until the midcoronal plane forms an angle of 45 to 60 degrees w/ the plane of the IR?
Definition
PA oblique projection (Scapular Y)
Term
Which bones are located in the proximal row of the wrist?
Definition

Scaphoid, Lunate, Pisiform, and triquetrum

 

or

 

Navicular, Semilunar, Pisiform, and triangular/triquetral/cuneiform

Term
The most common IR size and the number of images on the IR for radiographs of the digits are:
Definition
8x10 inch (18x24 cm), two or more images
Term
If a pt. is able to rotate their arm but unable to abduct it, what shoulder views do you do?
Definition
AP external and internal, plus Scapular Y
Term
How should the central ray be for a Superoinferior Axial projection of the shoulder (Axillary)?
Definition
CR should be angled 5-15 degrees through the shoulder joint and toward the elbow.
Term
How should the CR be for an AP Scapula?
Definition
perpendicular to the mid-scapular area at approximately 2 inches inferior to the coracoid process
Term
AP Scapula breathing technique is:
Definition
slow breathing
Term
CR for a lateral scapula?
Definition
perpendicular to the mid-medial border of the protruding scapula
Term
When postioning for a lateral scapula projection, what arm position(s) would be used to show delineation of the acromion and coracoid processes?
Definition
patient's elbow should be flexed and the back of the hand should be on the patient's lower back
Term
When postioning for a lateral scapula projection, what arm position(s) would be used to show the body of the scapula?
Definition

pt. has arm extended upward with the forearm resting atop the head

 

or

 

pt. has arm extended across the upper chest by grasping the opposite shoulder

Term
How much angle for an AP Axial Foot?
Definition
10 degrees cephalic
Term
How much angle for AP Axial Toes?
Definition
15 degrees cephalic
Term
What is the breathing technique for a transthoracic lateral projection of the shoulder?
Definition
Full inspiration
Term
What is the breathing technique for an AP projection of the clavicle?
Definition
suspend at the end expiration (obtains more uniform density)
Term
What is the breathing technique for an AP Axial projection of the clavicle?
Definition
suspend at the end of full inspiration to elevate and angle the clavicle further
Term
For an AP projection of the scapula, what should the breathing technique be?
Definition
slow breathing to obliterate lung detail
Term
Any plane passing through the body at right angles to the longitudinal axis is termed?
Definition
Horizontal
Term
Movement of a part away from the central axis of the body or body part is termed:
Definition
abduction
Term
T9 and T10 are located at the level of the:
Definition
Xiphoid Process
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