PA Finger Flashcards
How many bones are in the hand?
27 bones
How many phalanges on the hand?
14 phalanges
How should the chair be positioned at the table?
It should be positioned at the side or end of the table so the patient can sit with effected side closest to the table
The hand should be ________ on IR
Prone, flat
How should the upper body be positioned?
Should be level with table, elbow bent at 90 degrees
Why is it important to be sure all digits are fully extended?
To ensure that the bones are not foreshortened
PA finger CR location?
Perpendicular to the proximal interphalangeal joint
Is the CR parallel or perpendicular to PIPJ?
Parallel
When collimating, how much of the metacarpal should be demonstrated?
1”
When evaluating your image, you notice that there is greater concavity on the lateral surface of the phalanges. What error occurred? What else would indicate this error?
Finger is rotated, look at how much more soft tissue there is on lateral surface. More soft tissue + greater concavity= rotation, finger is away from IR
When evaluating your image, you notice that the interphalangeal joints are closed and the phalanges are foreshortened. What error occurred?
The finger is flexed
