Deck 26: Mobile Radiography

Question 1

How long should the patient lie in the decubitus position before making the exposure during a mobile decubitus chest examination?

A) 1 minute
B) 2 minutes
C) 3 minutes
D) 5 minutes

Answer 1

5 minutes

Question 2

Which of the following attire is worn by the radiographer if a patient has drainage secretion precautions?
1)Mask
2)Gown
3)Gloves

A) 1 only
B) 2 only
C) 3 only
D) 1, 2, and 3

Answer 2

3 only

Question 3

What will result if the grid IR is leaning on a mobile lateral decubitus examination of the chest or abdomen?

A) Increased scatter
B) Distortion
C) The distal anatomy will not be demonstrated
D) The proximal anatomy will not be demonstrated

Answer 3

Distortion

Question 4

To keep exposure times to a minimum during mobile radiography, the recommended SID should be _____ inches.

A) 30
B) 36
C) 40
D) 48

Question 5

Which of the following should be available on every mobile radiography machine?
1)Lead apron
2)Radiographic technique chart
3)Measuring caliper

A) 1 and 2
B) 1 and 3
C) 2 and 3
D) 1, 2, and 3

Question 6

During mobile radiography, the least amount of scattered radiation will occur at what angle to the object being radiographed?

A) 45 degrees
B) 50 degrees
C) 70 degrees
D) 90 degrees

Question 7

Mobile radiographic units can have direct digital capability with wired to the unit or wireless.

Question 8

The generators for mobile units have the same kilowatt rating as stationary x-ray equipment.

Question 9

Most grids used for mobile radiography have ratios of:

A) 6:1 or 8:1.
B) 8:1 or 10:1.
C) 10:1 or 12:1.
D) 12:1 or 16:1.

Question 10

The single most effective means of radiation protection during mobile radiography is:

A) distance.
B) exposure time.
C) choice of kVp.
D) use of a nongrid technique.

Question 11

According to federal regulations, the source-to-skin (SSD) distance during mobile radiography may not be less than _____ inches.

A) 10
B) 12
C) 15
D) 24

Question 12

During mobile radiography, the radiographer ideally should be standing at what degree of angle from the primary beam?

A) 0 degrees
B) 45 degrees
C) 90 degrees
D) 45 to 90 degrees

Question 13

Which of the following preliminary steps should the radiographer perform before beginning a mobile x-ray examination?
1)Invite family members to remain in the room.
2)Introduce oneself to the patient and family.
3)Determine that the correct patient is in the room.

A) 1 and 2
B) 1 and 3
C) 2 and 3
D) 1, 2, and 3

Question 14

The central ray must be centered within how many inches of the midline of the grid to avoid grid cutoff?

A) 1 inch
B) 1 inches
C) 2 inches
D) 2 inches

Question 15

The anode heel effect is an important consideration in mobile radiography. Which of the following will produce a more pronounced heel effect?
1)Short SID
2)Large field size
3)Use of low kVp techniques

A) 1 and 2
B) 1 and 3
C) 2 and 3
D) 1, 2, and 3

Question 16

For which mobile examinations is the cathode of the x-ray tube placed toward the head end of the patient?
1)AP abdomen
2)AP and lateral femur
3)AP chest

A) 1 and 2
B) 1 and 3
C) 2 and 3

Question 17

During a mobile exposure, the radiographer should be how far from the object being radiographed?

A) 4 feet
B) 5 feet
C) 6 feet
D) 10 feet

Question 18

Which of the following attire is worn by the radiographer when entering a strict isolation room for a mobile radiography examination?
1)Mask
2)Gown
3)Gloves

A) 1 and 2
B) 1 and 3
C) 2 and 3
D) 1, 2, and 3

Question 19

During mobile radiography, shielding should be used on:
1)children.
2)exams in which the gonads are near the primary beam.
3)patients of reproductive age.

A) 1 and 2
B) 1 and 3
C) 2 and 3
D) 1, 2, and 3

Question 20

Which position is recommended for a mobile AP chest examination on a critically ill patient?

A) Seated upright at a 90-degree angle
B) Seated upright at a 45-degree angle
C) Supine
D) Left lateral decubitus