Chapter 32 Mobile Radiography

Which of the following radiology examinations is more complex due to the fact there are so many extra variables?

a. Fluoroscopy

b. Mobile radiography

c. Computer tomography (CT)

d. Diagnostic radiography

b

Why are mobile examinations requested at the bedside?

a. Radiology department is busy

b. Patient is eating a meal

c. Patient refuses to leave the bed

d. To avoid transporting the patient due to their illness

d

What type of drive switch should the mobile unit have?

a. Toggle

b. Selector

c. Dead-man

d. Pressure

c

Which of the following aspects of mobile equipment use could seriously injure patients and staff?

a. Careless driving

b. Medical devices

c. Mounted television sets

d. Battery leakage

a

When a radiographer estimates the source-to-image receptor distance (SID) it must be within what percentage to avoid creating an image with a substantial exposure difference?

a. 15 percent

b. 5 percent

c. 10 percent

d. 20 percent

a

What is very difficult to achieve when a patient is supine and a grid is placed on a soft bedding surface?

a. Not letting the grid slip down

b. Not hurting the patient's back

c. Proper alignment of the grid

d. Not tearing the bedding or bed

c

Who must give permission before a radiographer enters a patient's room for a mobile examination?

a. No one

b. Patient

c. Nurse

d. Physician

b

What usually happens with an unconscious patient when the radiographer speaks kindly and explains the examination?

a. Patient becomes uncooperative

b. No change

c. Patient is more cooperative

d. Patient is less mobile

c

Whose job is it to return all the items to their original location in the patient's room?

a. Nurse

b. Patient's family

c. Radiographer

d. Patient

c

Which of the following angles will cause grid cutoff when angling off-center to a focused grid?

a. 5 degrees

b. 10 degrees

c. 15 degrees

d. 20 degrees

a

Which of the following is employed to enhance the contrast of a radiographic image?

a. Collimator

b. Shutters

c. Focal spot

d. Grid

d

What is the ideal position to show air-fluid levels in a chest x-ray?

a. Semi-erect

b. Supine

c. Lateral decubitus

d. Erect

d

What is a prime reason for repeated mobile exposures?

a. Aligning the grid improperly

b. Failure to measure distance

c. Incorrect technical factors

d. Patient movement

b

When doing a mobile x-ray how many lead aprons should the radiographers have?

a. None

b. One

c. Two

d. Three

c

Who should be consulted before moving any lines?

a. No one

b. Patient's family

c. Patient

d. Nurse

d

When it is necessary to demonstrate air-fluid levels, how many images need to be taken?

a. 4

b. 3

c. 2

d. 1

c