RAD 140 QUESTIONS AND ANSWERS

RAD 140 QUESTIONS AND ANSWERS

1. A radiographic image of the chest is obtained in the PA projection. Which body
position and phase of respiration will move the diaphragms to their lowest positions?
a. Erect, inspiration
b. Erect, expiration
c. Supine, expiration
d. Supine, inspiration - Answers - a. Erect, inspiration

2. The technical factor related to the quantity of x-ray:
a. kVp
b. mAs
c. distance
d. none of the above - Answers - b. mAs

3. With reference to the IR, how are the midsagittal plane and the midcoronal plane
positioned for the AP chest, left lateral decubitus position?
a. MSG: parallel; MCP: parallel;
b. MSG: parallel; MCP: perpendicular;
c. MSG: perpendicular; MCP: parallel;
d. MSG: perpendicular; MCP: perpendicular; - Answers - c. MSG: perpendicular; MCP:
parallel;

4. When only image exposure is desired to remain the same, 15% rule can be used.
True
False - Answers - True

5. Which of the following has the largest lumen size?
a. 18 gauge
b. 21 gauge
c. 23 gauge
d. 25 gauge - Answers - a. 18 gauge

6. Which body type represents 10% of persons?
a. Sthenic
b. Asthenic
c. Hypersthenic
d. Hyposthenic - Answers - b. Asthenic

7. An air gap technique (increasing OID) will generally improve image contrast because:
a. It was used with a small FS
b. The air absorbed scatter radiation
c. It was used with a small FOV
d. The scatter is more diverging than the primary beam - Answers - d. The scatter is
more diverging than the primary beam