For an AP oblique sacroiliac joint projection (LPO position), the ...

[eruditmonkey@yahoo.com]

For an AP oblique sacroiliac joint projection (LPO position), the
 
  1. patient's midsagittal plane is placed at a 25- to 30-degree angle with the imaging table.
  2. sacroiliac joint of interest is positioned farther from the IR.
  3. right marker should be used.
  4. central ray is centered 1 inch (2.5 cm) medial to the elevated ASIS.
  a. 1 only
  b. 2 and 4 only
  c. 2, 3, and 4 only
  d. 1, 2, 3, and 4

Question 2

An AP oblique sacroiliac joint projection (RPO position) with poor positioning demonstrates a closed sacroiliac joint, the superior and inferior sacral alae without superimposition, and the lat-eral sacral ala superimposed over the iliac tuberosity.
 
  How was the positioning setup mispositioned for such a projection to be obtained?
  a. The pelvis was insufficiently rotated.
  b. The pelvis was overrotated.
  c. The central ray was not angled.
  d. The central ray was centered too medially.

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Answer to Question 1

C

Answer to Question 2

A

[eruditmonkey@yahoo.com]

Correct answers!

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