Mobile/Trauma Radiography Flashcards
CR centering/angle for supine mobile chest
3-5 degrees caudad at T-7
CR centering/angle for semi-erect mobile chest
CR perpendicular to plane of IR at T-7
SID for mobile chest radiographs
40 inches minimum
CR for AP mobile abdomen
Level of the iliac crest
CR for left lateral decubitus abdomen
Level 1-2” above the iliac crest (diaphragm included)
A ____ can be taken to show a possible AAA or as a substitute for a lateral decubitus if the patient can not move
lateral dorsal decubitus
Often inserted under C-arm guidance or in an interventional suite
Pacemaker
displacement of a bone that is no longer in contact with its normal articulation
Dislocation
occurs when a bone is partially pulled or pushed out of place in relation to its normal alignment
Subluxation
a wrenching or twisting of a joint resulting in a tearing or rupturing of associated soft tissues without dislocation
Sprain
a bruise type of injury. Can sometimes be associated with a bony injury
Contusion
a disruption of bone caused by a force applied either directly to the bone, or transmitted along the shaft of the bone.
Fracture
how the fragmented ends of the bone make contact with each other
Apposition
the fractured ends of the bone align anatomically making contact with each other
Anatomic apposition
the ends of the fragmented bone are aligned, but pulled apart with a gap between them
Lack of apposition (distraction)
the bone fragments are displaced and overlapping each other so that the shafts of the bone are in contact with each other
Bayonet apposition
describes the loss of alignment of the fracture and the direction caused by this misalignment
angulation
The ____ of the angulation is opposite in relation to the distal ends of the fractured bone
apex
describes the angle or direction of the fragment such as a medial or lateral apex in which the point of the angle points medially or laterally
Apex angulation
Apex is pointing away from the midline of the body and the distal ends of the fractured bone are angled towards the midline of the body
Varus deformity
apex is pointing to the midline of the body and the distal ends of the fractured bone are angled away from the midline
Valgus deformity
fracture in which the bone does not break through the skin
Simple fracture (closed)
a fracture in which a portion of the bone breaks through the skin. This is typically the fragmented end
Compound fracture
fracture does no completely transverse the bone. More common in pediatric patients who still have more flexible bone tissue
Incomplete fracture (partial)
a buckle of the outer portion of the bone (the cortex) with localized expansion of the cortex with little to no displacement or complete break in the cortex
Torus/”Buckle” fracture
this fracture is on one side of the bone only with the cortex of the affected side of the bone broken and the cortex on the other side bent
Greenstick fracture
the bone is broken into two separate pieces.
Complete fracture