NAVEDTRA 14295B CH 17 Flashcards

1
Q

What are Hospital Corpsmen (HM) performing diagnostic imaging called?

A

Radiology technologists

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2
Q

What is the most common type of x-ray exam?

A

Chest

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3
Q

With what type of technology can physicians view the inside of organs?

A

Computed Tomography (CT)

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4
Q

During what type of scan can atoms in the patient’s body be exposed to a strong magnetic field?

A

Magnetic Resonance Imaging (MRI)

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5
Q

Who use sound waves to obtain images of organs and tissues in the body?

A

Sonographers

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6
Q

Who produce diagnostic images of breast tissue using special x-ray equipment?

A

Mammographers

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7
Q

What is the art of recording images of a patient’s oral structures on film by using X-rays called?

A

Oral radiography

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8
Q

What year were X-rays discovered by a scientist named Wilhelm Conrad Roentgen?

A

1895

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9
Q

X-rays are a electromagnetic rays that travel in a wave motion and the measurement of this wave motion is called a what?

A

Wavelength

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10
Q

How many factors is the density of the X-ray image controlled by?

A

4

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11
Q

What are the walls of X-ray rooms lined with that provide an element of shielding to people outside the room?

A

Lead

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12
Q

What rule is based on the principle that any amount of radiation exposure, no matter how small, can increase the chance of negative biological effects such as cancer?

A

ALARA

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13
Q

Film badges are placed in the X-ray room behind the technician’s protective lead-lined barrier or at least how many feet from the tube head and never in the direct line of radiation during exposure?

A

6

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14
Q

Radioactive material shall not be used in such a manner to cause any non-radiation worker to exceed a total effective dose equivalent to how many mRem per year considering occupancy factors and source usage?

A

500

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15
Q

The NRC has established total whole body doses for radiation workers. It sets the annual total effective dose limit at how many mRem for the entire body?

A

5,000

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16
Q

What program is designated to save Department of Defense (DOD) money by recycling precious metals and using those funds to offset the cost of supplies for DOD activities?

A

Precious metals recovery

17
Q

Under what guidelines will precious metals be saved and turned into the Supply Department?

A

BUMEDINST 4010.3

18
Q

What examination is conducted to obtain radiographs of the crowns, roots, and supporting structures fo the teeth?

A

Periapical

19
Q

How many periapical radiographs does the full mouth periapical examination consists of?

A

14

20
Q

What examination reveals the presence of interproximal caries, certain pulp conditions, overhanging restorations, improperly fitting crowns, recurrent caries beneath restorations, and resorption of the alveolar bone?

A

Interproximal

21
Q

What type of examination is usually conducted when fractures of the jaw or gross pathological conditions are suspected?

A

Occlusal

22
Q

What technique is used for exposing occlusal radiographs?

A

Bisected angle

23
Q

What is the fastest advancing technology in healthcare imaging today?

A

Digital imaging

24
Q

How many basic steps involved in processing X-ray film are there?

A

5

25
Q

White light along with what else are the two basic sources of illumination a darkroom has?

A

Safelight

26
Q

The length of exposure of undeveloped imaging film to the safelight should be limited to no longer than how many minutes?

A

2

27
Q

What is the most commonly used method of processing medical and dental radiographs in the Navy?

A

Automatic processing

28
Q

If processing a large quantity of X-ray films, the HM must avoid any mix-up. To do this, after inserting one patient’s X-ray films, how many seconds should go by before inserting the next patient’s films?

A

15

29
Q

How often should the developer and fixer be changed at a minimum?

A

3 to 4 weeks

30
Q

What type of X-ray machine is used to produce an extraoral radiograph that shows both dental arches and the temporomandibular joints?

A

Panoramic