IR Reviewer 1

invented the fluoroscope

• Thomas A. Edison
• Alber Einstein
• Marie Curie
• Isaac Newton

actually a rather routine type of x-ray examination except for its application in the visualization of vessels, called angiography.

• FLUOROSCOPY
• Illumination
• Contrast perception
• Photoemission

The fluoroscope is used primarily for dynamic studies

• True
• False

All fluoroscopes are operated remotely from outside the x-ray room.

• False
• True

During fluoroscopy, the x-ray tube is operated at less than ____ Ma

• 5.0
• 50.0
• 0.6
• 45.0

the patient dose is considerably lower during fluoroscopy than during radiographic examinations

• False
• True

Fluoroscopic equipment allows the radiologist to select an image brightness level that is subsequently maintained automatically by varying the kVp, the mA, or sometimes both.

• Automatic Brightness Control (ABC)
• scotopic vision
• Image-Intensifier Tube
• Visual acuity

measured in units of lumen per square meter or lux

• Illumination
• Automatic Brightness Control (ABC)
• scotopic vision
• Image-Intensifier Tube

Radiographs are visualized under illumination levels of _______ lux

• 100 to 1000
• 1000 to 10000
• 10000 to 100000
• 10 to 100

Cones are used primarily for daylight vision, called _____,

• photopic vision
• FLUOROSCOPY
• Illumination
• Contrast perception