Exam 1 (Getting the Patient Ready for X-rays)

Question 1

_____ objects may appear bright white on the film and may obscure the anatomy

Answer 1

Metal

Question 2

_____ may appear as an abnormal density due to the surrounding air. Often confused with soft tissue

Answer 2

Clothing

Question 3

Constricting garments like _______ will cause a dark area on the film

Answer 3

Elastic

Question 4

T/F Exposure of a patient to X-ray should be done even if there is no clinical need

Answer 4

FALSE.

Must have clinical need to warrant exposure (benefits of X-ray outweigh the harm)

Question 5

__ artifacts will appear white/light while ___ artifacts appear dark

Answer 5

\+ = white/light
- = dark

Question 6

T/F Children should be X-rayed at least once a year to make sure the epiphyseal growth plates are growing properly

Answer 6

FALSE.

Children should be X-rayed sparingly

Question 7

T/F The patient dose limit is no more than 800 kV at 125 mAs/visit/month

Answer 7

FALSE.

There is no dose limit, but the principle is to keep the dose as low as possible

Question 8

Federal agency that refers to keeping patient exposure as low as is reasonable

Answer 8

National Council on Radiation Protection (NCRP)

Question 9

Examples of maintaining a regular assurance program of testing equipment

Answer 9

• Machine calibration
• Collimation accuracy
• Tube alignment
• Film/screen contact

Question 10

What avoids retakes and reduces patient exposure to X-rays?

Answer 10

Proper patient selection for the type of study needed