Last Topic for Prelims

Question 1

Does not meet the standards regulated by state and federal laws

Answer 1

Inherent Filtration

Question 2

Aluminum disks can be added to the tubehead in 0.5 mm increments

Answer 2

Added Filtration

Question 3

Used to restrict the size and shape of the x-ray beam and to reduce patient exposure

Answer 3

Collimation

Question 4

Fitted directly over the opening of the machine housing

Answer 4

Collimator

Question 5

Used to direct the x-ray beam

Answer 5

Position indicating device

Question 6

2 types of position indicating device

Answer 6

a. Rectangular
b. Circular

Question 7

Prevents radiation from reaching the gland and protects the highly radiosensitive tissues of the thyroid

Answer 7

Thyroid collar

Question 8

The fastest intraoral film available and is recommended by the ADA

Answer 8

F-speed film or InSight

Question 9

The dental radiographer must stand at least how many feet away from the x-ray tubehead during x-ray exposure?

Answer 9

6 feet

Question 10

What degree should the dental radiographer position himself/ herself perpendicular to the primary beam?

Answer 10

90-degree to 135-degree angle

Question 11

Is any radiation, with the exception of the primary beam that is emitted from the dental tubehead

Answer 11

Leakage Radiation

Question 12

Defined by the National Council on Radiation Protection and Measurements (NCRP) as the maximum dose equivalent that a body is permitted to receive within a specific period

Answer 12

Maximum permissible dose

Question 13

States that all exposure to radiation must be kept to a minimum

Answer 13

ALARA Concept

Question 14

What does alara mean?

Answer 14

As low as reasonably achievable