Wrist Flashcards
The PA oblique wrist with medial rotation, ulna up, will demonstrate?
pisiform without superimposition
What position will demonstrate the thumb in an oblique position?
PA hand
What 2 carpal bones are considered medial?
Hamate (unciform), Pisiform (os pisiform)
What 2 carpal bones are considered lateral?
Navicular (scaphoid), Greater Multangular (Trapezium)
The CR should enter where for a PA projection of the wrist?
Posterior wrist at the mid carpal region
The proper SID for a mag wrist series is?
40
Why should you cup the fingers for the PA wrist position?
Places the wrist closer to the IR
What is the best position to demonstrate the carpal interspaces?
AP Supinated
When performing the mag wrist exam, where will the CR be directed for the lateral position?
Navicular/ Scaphoid
What is the routine wrist study?
PA, Lateral, PA oblique with lateral rotation, PA Oblique with medial rotation
List the proximal row of carpal bones beginning on the lateral surface.
Navicular (Scaphoid), Lunate (Semi Lunar), Triquetrum (triangular), Pisiform (OS pisiform)
List the proximal row of the carpal bones beginning on the medial surface.
Pisiform. Triquetrum, Lunate, Navicular
What is the largest carpal bone?
Capitate (OS magnum)
How of you position a patient for an ulnar variance study?
patients arm abducted a full 90 degrees from the body and the elbow flexed a full 90 degree
What is the correct OID for the magnification wrist study?
6’’
What is the proper degree of rotation when performing an oblique wrist?
45
Another name for boney detail?
Trabeculae, Spongey Detail
What anatomy must be included within the collimation when performing any wrist study?
1/2 metacarpals, 2’’ below styloid processes
when performing a lateral position of the wrist what is the positioning criteria used to judge if it is a well positioned study?
Superimposition of radius and Ulna, Superimposition of the base of the metacarpals, superimposition of the styloid processes
When performing aa magnification wrist in the lateral flexion position what specific pathology will be demonstrated
Carpal Boss
Explain the term radial deviation is when performing the position mag wrist study.
Towards the radius, Radial Flexion
If a patient cannot assume the PA oblique with medial rotation due to his or her condition, what is the alternative position of choice?
Angling the CR 45, AP Oblique with medial rotation
According to Merrills what three parts should be in the same place when performing all wrist studies?
Shoulder, Elbow, Wrist
According to Merrills the elbow should be flexed how many degrees when performing wrist studies?
90
When the wrist is paced in a lateral position, an imaginary line drawn through the styloid processes should be ____ to the IR.
perpendicular
When the wrist is placed in the PA or AP position, an imaginary line drawn through the styloid processes should be _____ to the IR
Parallel
What is the routine for a mag or 6 view study of the wrist at WH?
Neutral PA, Neutral Lateral, PA with Ulnar deviation, PA w/ radial deviation, lateral w/ fexion, lateral w/ extension
