Wilkins Clinical Assessment in Respiratory Care 7th Edition Heuer Test Bank

Wilkins Clinical Assessment in
Respiratory Care 7th Edition Heuer Test
Bank




Chapter 10: Chest Imaging Test
Bank


MULTIPLE CHOICE

, 1. Electrons coming off the cathode in an x-ray machine are focused to hit a small area of the
anode called the: a. tube.
b. target.
c. transformer.
d. focusing plate.




ANS: B
Electrons coming off the cathode wire are focused to hit a small area on the anode. This area
is called the target.

REF: pg. 208 OBJ: 1


2. The ability of x-rays to penetrate matter is inversely proportional to which of the following
physical properties of matter? a. Viscosity
b. Density
c. Weight
d. Diffusion




ANS: B
X-rays are not reflected as light rays are, but they penetrate most matter. Their ability to
penetrate matter is dependent on the density of the matter. Dense objects such as bone absorb
more x-rays (allow less penetration) than do air-filled objects such as lung tissue.

REF: pg. 209 OBJ: 1


3. Which of the following tissues will look radiolucent on a chest radiograph? a. Blood
b. Bone
c. Lungs
d. Liver




ANS: C
X-rays that pass through low-density (air-filled) tissue strike the film in great numbers and
turn it black (radiolucent).

REF: pg. 209 OBJ: 3


4. Which of the following terms defines high-density tissues on the x-ray film? a. Radiolucent
b. Radiopaque
c. Radiographic