Quiz #2 Hand, wrist, and digit positioning

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For a lateral projection of the wrist, the elbow must be flexed:

90 degrees

The central ray for a PA projection of the wrist is directed to the:

midcarpal area

Which of the following projections prevents foreshortening of the scaphoid:

PA in ulnar flexion

The most common oblique projection of the second through fifth digits is:

PA with lateral rotation

Which of the following positions are used to demonstrate the hand in the lateral projection? 1. ulnar surface down, hand extended 2. radial surface down, hand extended 3. ulnar surface down, finger in "fan lateral"

1, 2, and 3

Which of the following should be in contact with the tabletop for a PA projection of the wrist? 1.) arm 2.) axilla 3.) forearm

1, 2, and 3

Which of the following are well demonstrated on a PA oblique projection or the wrist? 1. capitate 2. trapezium 3. scaphoid

2 and 3

The PA oblique projection of the wrist in lateral rotation requires a wrist angulation of

45 degrees

The PA axial projection of the wrist (Stecher method) clearly demonstrates the:

Scaphoid

The PA projection of the wrist in ulnar deviation clearly demonstrates the:

Scaphoid

The Patient position most commonly used to perform a radiograph of a finger (digit) is:

Sitting at the end of the table

For a lateral projection of the hand, the central ray is directed to the:

Second digit MCP joint

For a PA oblique projection of the first digit (thumb) the hand is placed in the:

prone position

Which of the following central-ray angles is used for the lateral projection of the wrist?

0 degrees

Which of the following projections clearly demonstrates the scaphoid? 1. PA in ulnar flexion 2. PA oblique in lateral rotation 3. PA axial (Stecher method)

1 and 3

How many degrees is the hand rotated for a PA oblique projection of the digit?

45

For exact positioning of the PA oblique wrist, and to ensure duplication in follow-up examinations, which of the following is required?

45 degree foam wedge

For a lateral projection of the second through fifth digits, the central ray is directed:

0 degrees

The central-ray angle for a PA oblique projection of the wrist is:

0 degrees

The central-ray angulation for the PA projection of the hand is:

0 degrees

Which of the following is the primary projection used to demonstrate anterior or posterior displacement of fractures of the hand or wrist?

lateral

Flexing the fingers for a PA projection of the wrist causes which of the following:

placement of the carpal bones closer to the IR

For a PA projection of the second digit, the central ray is directed to the:

proximal interphalangeal joint


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