For a PA Small Intestine Projection

Multiple Choice

For a PA small intestine projection,
1) a marker indicating the time that has elapsed since the last image was obtained is demonstrated on the image.
2) the timing of the images begins after the patient ingests the contrast.
3) images are obtained until the barium reaches the right colic flexure.
4) the shoulders and ASISs are positioned at equal distances from the imaging table.

A) 1 and 3 only
B) 2 and 4 only
C) 2, 3, and 4 only
D) 1, 2, 3, and 4