VTNE Diagnostic Imaging 4

Question 1

In digital radiography, what does the term 'exposure index' indicate?

Accepted Answer

A measure of detector exposure level relative to optimal

Answer

The exposure index is a numeric value indicating whether the detector received too little (underexposure) or too much (overexposure) radiation relative to the system's calibrated target.

Question 2

Which radiographic sign describes air within the intestinal wall (intramural gas) seen in necrotizing enterocolitis or emphysematous gastritis?

Accepted Answer

Pneumatosis intestinalis

Answer

Pneumatosis intestinalis refers to gas trapped within the intestinal wall layers, which is a grave sign indicating bowel necrosis or severe mucosal compromise.

Question 3

A lateral skull radiograph of a cat shows lysis of the tympanic bullae with soft tissue opacity filling the bulla. The most likely diagnosis is:

Accepted Answer

Otitis media/interna with bulla involvement

Answer

Lysis of the tympanic bulla combined with soft tissue opacity filling the bulla cavity is characteristic of chronic otitis media/interna with secondary osteomyelitis.

Question 4

What is the purpose of using the ALARA principle in veterinary radiology?

Accepted Answer

To keep radiation exposure as low as reasonably achievable

Answer

ALARA (As Low As Reasonably Achievable) is the guiding radiation safety principle requiring minimization of exposure to patients, staff, and the environment while maintaining diagnostic image quality.

Question 5

On an ultrasound of the canine abdomen, which structure typically appears as a hyperechoic line with acoustic shadowing in the right cranial abdomen?

Accepted Answer

Gas within the duodenum

Answer

Gas within the duodenal lumen produces a hyperechoic interface with dirty acoustic shadowing, a normal finding that can limit visualization of structures behind it.

VTNE - Veterinary Technician National Examination Practice Test

VTNE - Veterinary Technician National Examination Practice Test

VTNE Diagnostic Imaging 4