VTA 140 Review Questions

The ________________ in the developer causes the sensitized silver halide to change into black metallic silver.

• a. Restrainer

• b. Reducing agent

• c. Water

• d. Preservative

On the resulting radiograph, use of a grid can produce

• a. Shorter scale of contrast

• b. Blurriness

• c. Thin white lines

• d. Shadows

What causes scatter radiation?

• a. The anode heel

• b. The object being x-rayed

• c. The collimator

• d. The cathode

How do photo labelers work?

• a. They project a label onto the undeveloped film

• b. They etch the label into the cellulose acetate

• c. They print stickers

• d. They are attached to the tube head and form the label from x-rays

The lead strips of a parallel grid are

• a. Parallel to the grid surface

• b. At progressively increasing angles

• c. At a 45-degree angle from the grid surface

• d. Perpendicular to the grid surface

What is the patient positioning for imaging of the maxillary incisors and canines of the dog and cat?

• a. Sternal recumbency

• b. Lateral recumbency

• c. Ventral recumbency

• d. Dorsal recumbency

Brandon positions the patient in lateral recumbency to image her left scapula because the veterinarian is interested in seeing the lateral surface of the bone. How does Brandon label the film?

• a. LV

• b. PaPI

• c. ML

• d. LM

Which statement about occupational safety around radiographic studies in the veterinary clinic is FALSE?

• The patient should be anesthetized for radiographs if possible

• Manual restraint is preferred over used tape or sandbags

• Those employees under 18 should not be allowed to restrain patients for exposure

• The scatter radiation can come from any direction, including under the table top

Which of these cell types is MOST sensitive to ionizing radiation?

• Osteocytes

• Lymphocytes

• Muscle cells

• Neurons

• Tungsten filament; beryllium window

• Beryllium window; tungsten filament

• Cathode; anode

• Anode; cathode