FREE RADIOLOGY AND STUDY GAMES ABOUT

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FREE RADIOLOGY AND STUDY GAMES ABOUT

DISTORTION EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -32 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: What factor can affect shape distortion?

Answer:

X-ray tube angulation Question 2: What are the 2 types of distortion that can reduce the quality of a radiograph?

Answer:

Size and shape Question 3: An x-ray tube that is designed for magnification radiography is referred to as what?

Answer:

A fractional focus tube

Question 4: What occurs when the SID is increased?

Answer:

Image is reduced

Question 5: If the SOD increases, how is distortion affected?

Answer:

Distortion goes down Question 6: Magnification distortion can be used to an advantage for which of the following radiographic procedures?

Answer:

Cerebral angiography Question 7: If the SID is increased the same as the OID, what will the resultant radiograph show?

Answer:

An increase in size distortion

Question 8: If the grid ratio increases, how is distortion affected?

Answer:

It has no effect

Question 9: What would not be used to minimize radiographic distortion?

Answer:

Shortest possible exposure time Question 10: Misrepresentation of the true size and shape of an object is the definition of?

Answer:

Distortion

Question 11: What size focal spot is used when doing macroradiography?

Answer:

.3mm

Question 12: What is the most important factor in controlling distortion?

Answer:

OID

Question 13: When an object is placed halfway between the tube and the film, the image will be how many times larger?

Answer:

• times

Question 14: Which of the following will produce the smallest image?

Answer:

72" SID, 2" OID

Question 15: Size distortion is affected by?

Answer:

Geometric factors

Question 16: The ratio of SID to SOD represents which of the following?

Answer:

Magnification ratio

Question 17: What will occur when the OID is decreased?

Answer:

The image is closer to actual size

Question 18: What can be done to help compensate for an angled part?

Answer:

Align tube, part and film

Question 19: Which of the following will produce the largest image?

Answer:

40" SID, 3" OID Question 20: What percentage increase is usually used for magnification radiography?

Answer:

100%

Question 21: To avoid shape distortion, what must be paid close attention to?

Answer:

Part angulation

Question 22: How does magnification affect radiographic quality?

Answer:

Decreases detail

Question 23: Tube angulation will produce which type of distortion?

Answer:

Elongation

Question 24: If the air-gap technique is used, how is distortion affected?

Answer:

Distortion goes up

Question 25: Changing the shape of an object is called?

Answer:

Distortion Question 26: What is the magnification factor if an object measures 4 cm, but the radiographic image is 8 cm?

Answer:

2x

Question 27: If the SID increases, how is distortion affected?

Answer:

Distortion goes down

Question 28: What advantage is there to magnifying an object?

Answer:

Small objects become visible