Deck 20: 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

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

Answer 2

False

Question 3

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

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

Answer 3

1inches

Question 4

During a mobile exposure,the radiographer should be how far from the patient or part being radiographed?

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

Question 5

Which protective attire is worn by the radiographer if a patient has drainage secretion precautions?

A) Gown
B) Shoe covers
C) Gloves
D) Mask

Question 6

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 7

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 8

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

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

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

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

Question 11

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

Question 12

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