Félins

Question 1

A practice is using an FeLV test with a sensitivity of 90% and a specificity of 95%.

Assuming the prevalence of feline leukemia in the area is 5%, what is the predictive value negative (PVN) of the test?

A - 45%
B - 75%
C - 55%
D - 99%
E - 88%

Answer 1

D - 99%

Question 2

A five-year-old female spayed cat is presented with a two-day history of vomiting and anorexia.

Physical exam reveals 5% dehydration and abdominal discomfort. Plain abdominal radiographs are shown below.

Which choice is the most appropriate step to take next?

A - IV fluids and broad-spectrum antibiotics
B - Gastroduodenoscopy with biopsy
C - Exploratory laparotomy
D - Specific feline pancreatic-lipase assay
E - Non-iodinated contrast series

Answer 2

C - Exploratory laparotomy

Question 3

A five-year-old female spayed domestic short-haired cat is presented with chronic vomiting, anorexia, and weight loss.

Physical examination reveals icterus, dehydration, and fever. Abdominal palpation identifies thickened small intestinal loops, and serum biochemistry shows increased bilirubin and liver enzymes.

The cat is diagnosed with extrahepatic biliary obstruction with accompanying cholangitis and inflammatory bowel disease.

Which one of the following normal anatomic features may predispose cats to this triad of diseases?

A - Enlarged duodenal papilla in comparison to other species
B - Common opening of the pancreatic and common bile ducts into duodenum
C - Narrowing of the duodenum distal to the entry of the common bile and pancreatic ducts
D - Decreased proportion of alpha-smooth muscle actin in muscle fibers of the wall of the gall bladder in cats
E - Decreased diameter and increased branching of the hepatic ducts in comparison to other species

Answer 3

B - Common opening of the pancreatic and common bile ducts into duodenum

Question 4

A two-year-old male neutered domestic shorthair cat is presented after a suspected fall from a height of approximately 35 feet (over ten meters).

The cat is initially stabilized with intravenous fluids and oxygen therapy. Four hours later, the cat has not urinated and no urinary bladder is palpable.

An abdominal focused assessment with sonography for trauma, triage, and tracking (AFAST) reveals a moderate volume abdominal effusion, with no visible urinary bladder.

What test would confirm the top differential?

A - Lactate and glucose levels of peritoneal sample and blood
B - Abdominocentesis with Gram stain and cell count
C - Measurement of BUN in blood and fluid
D - Paired plasma and effusion potassium and creatinine
E - Total protein and microscopic analysis of the ascites

Answer 4

D - Paired plasma and effusion potassium and creatinine