NAVLE Small Animal Diagnostic Imaging Questions and Answers

Question 1

A 5-year-old dog presents with acute vomiting and abdominal pain.
Abdominal radiographs reveal a segment of small intestine that is severely dilated with gas, proximal to a segment of normal-caliber, empty-appearing small intestine.
What is this radiographic finding, often referred to as 'two populations of bowel,' most indicative of?

Accepted Answer

Mechanical obstruction

Answer

Functional ileus

Answer

Gastroenteritis

Answer

Pancreatitis

Question 2

On abdominal ultrasound of a cat with stranguria, a hyperechoic structure is identified in the center of the urinary bladder. The structure produces a clean, dark vertical band beneath it that obscures deeper tissues. Which of the following best describes this artifact and the most likely identity of the structure?

Accepted Answer

Acoustic shadowing from a urolith

Answer

Reverberation artifact from a gas bubble

Answer

Acoustic enhancement from a cyst

Answer

Side lobe artifact from a polyp

Question 3

A 6-year-old Dachshund presents with acute onset of non-ambulatory paraparesis and spinal hyperesthesia localized to the T3-L3 region. Which imaging modality is considered the gold standard for definitively diagnosing intervertebral disc extrusion and assessing the degree of spinal cord compression?

Accepted Answer

Magnetic Resonance Imaging (MRI)

Answer

Survey spinal radiography

Answer

Computed Tomography (CT)

Answer

Myelography

Question 4

You are evaluating thoracic radiographs of an older cat with a history of a previously removed mammary carcinoma. The lung fields show multiple, well-defined, variably sized nodules of soft tissue opacity. Which of the following is the most likely interpretation of this pulmonary pattern?

Accepted Answer

Metastatic neoplasia

Answer

Fungal pneumonia

Answer

Allergic bronchitis (asthma)

Answer

Cardiogenic pulmonary edema

Question 5

A 4-year-old male Dalmatian has recurrent stranguria. Survey abdominal radiographs are unremarkable. Given this breed's predisposition to radiolucent uroliths, which contrast study is most appropriate to definitively identify their presence within the bladder?

Accepted Answer

Double contrast cystogram

Answer

Excretory urogram

Answer

Positive contrast cystogram

Answer

Negative contrast cystogram

Question 6

A 9-year-old dog is presented for chronic, unilateral nasal discharge. To evaluate the extent of disease, including potential bone destruction of the nasal turbinates and integrity of the cribriform plate, which advanced imaging modality is superior?

Accepted Answer

Computed Tomography (CT)

Answer

Magnetic Resonance Imaging (MRI)

Answer

Rhinoscopy with biopsy

Answer

Dental radiography