For an AP-PA Large Intestine Projection (Lateral Decubitus Position)

question 15

Multiple Choice

For an AP-PA large intestine projection (lateral decubitus position) ,
1) uniform density is obtained by positioning the thick end of the compensating filter toward the imaging table.
2) an arrow or word marker is placed on the IR to indicate the side positioned adjacent to the imaging table.
3) the shoulders, posterior ribs, and posterior pelvis are positioned at equal distance to the imaging table.
4) the central ray is centered to the midsagittal plane at the level of the iliac crest.

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

---

Definitions:

Standard Deviation

A statistical measure that quantifies the amount of variation or dispersion of a set of data values.

Mean Height

The average height of a group of individuals, calculated by summing their heights and dividing by the number of individuals.

Confidence Interval

A spectrum of values obtained from statistics of a sample, which is likely to encompass the actual population parameter at a specific probability level.

Random Sample

A random sample is a subset of individuals chosen from a larger set, where each individual has an equal chance of being selected.