Why should the chin be extended when doing either a PA or lateral chest radiograph?

Why is the purpose of the backup timer when using automatic exposure control?     1. protect the patient from overexposure     2. protect the x-ray tube from excessive heat     3. increase inherent filtration

Which of the following positions best demonstrates the cuboid, sinus tarsi, and tuberosity of the fifth metatarsal?

Which component of a digital x-ray detection system does not have a scintillator?

What is the purpose of the exposure index number used by CR systems?

Which of the following conditions indicate that water soluble contrast media should be used for exams of the GI tract?     1. perforated gastric ulcer     2. risk of barium impaction     3. potential abdominal surgery

What is the annual dose limit for an occupational worker?

Which of the following positions or projections would best demonstrate the cuboid free of superimposition?

To prevent a Moire pattern in a CR digital image, it is best to have the grid lines running ___ to the direction of the laser beam.

Which of the following will occur as a result of decreasing the anode target angle?