Positioning and Related Anatomy 9th Edition by
Lampignano Complete Exam Questions and Answers A+
A radiograph of a PA oblique of the hand reveals that the midaspect of the fourth and fifth
metacarpals is superimposed. What specific positioning error has been committed? - answer-
Excessive rotation of the hand and/or wrist
The smooth, depressed, center portion of the trochlea used for evaluating rotation on a lateral
elbow is termed the trochlear: - answer-sulcus
How much rotation of the humeral epicondyles is required for the AP medial oblique projection
of the elbow? - answer-45 degrees
How many carpal bones are found in the wrist? - answer-8
A radiograph of an AP oblique elbow with medial rotation reveals that the radial head is
superimposed over part of the coronoid process. What positioning error has been committed? -
answer-Excessive medial rotation
A lateral elbow radiograph demonstrates about half of the radial head superimposed by the
coronoid process of the ulna. Which of the following occurred? - answer-No positioning errors
occurred
A patient with a fractured forearm had the fracture reduced and a fiberglass cast placed on the
extremity. The orthopedic surgeon orders a postreduction study. The original kV was 60 kV.
Which one of the following kV factors should be selected for the postreduction study? -
answer-63 kV
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, T/F
The radiographic criteria for a true lateral finger indicate equal concavity of the anterior and
posterior aspects of the phalanges. - answer-False
The first carpometacarpal joint is classified as a____ joint. - answer-Sellar
A "skier's thumb" is an injury of the: - answer-Ulnar collateral ligament
Where is the central ray (CR) placed for a PA projection of the third digit? - answer-At the
proximal interphalangeal joint
A radiograph of a PA projection of the hand reveals that the distal radius and ulna and the
carpals were cut off. What should the technologist do to correct this problem? - answer-Repeat
the PA projection to include all the carpals and about 1 inch of the distal radius and ulna
A general positioning rule is to place the long axos of the part ___ to the long axis of the image
receptor. - answer-Parallel
The bending or forcing of the hand laterally with the hand pronated in a posteroanterior (PA)
projection is known as: - answer-Ulnar deviation
How much CR angulation to the long axis of the hand is required for the tangential,
inferosuperior projection to demonstrate the carpal sulcus (canal)? - answer-25 - 30 degrees
What is the distance between the tabletop and Bucky tray on most floating tabletop type of
tables? - answer-3 to 4 inches
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