Fluoroscopy and Mobile Units

Federal law requires what kind of

timer on fluoroscopic units?

• Audible 6 minute timer

• Audible 3 minute timer

• Audible 5 minute timer

• Audible 10 minute timer

What is the formula to find the SID?

• SID= SOD +OID

• SID= SOD-OID

Achieve maximum distance from the

______ immediately prior to exposure

Minimum source-to-skin distance for a mobile unit is

• 12 inches

• 10 inches

• 15 inches

• 14 inches

What is the minimum total filtration of

fluoroscopic equipment?

• .25 mm Al/Eq

• 2.0 mm Al/Eq

• .5 mm Al/Eq

• 2.5 mm Al/Eq

Where does the highest energy scatter occur

during fluoroscopy?

• Lesser than 45 degree angle to the incident beam

• Greater than 90 degree angle to the incident beam

• Less than 90 degree angle to the incident beam

• Greater than 45 degree angle to the incident beam

Appropriate entrance skin exposure for fluoroscopic radiography is measured in?

• mR/mAs

• R/min

• mR/min

• R/mAs

The mobile unit should not be used as a ______?

Minimum source-to-skin distance for a stationary unit is

• 12 inches

• 14 inches

• 15 inches

• 10 inches

During fluoroscopy, the bucky tray is at the ____ of the table.

• End

• Middle

• Head