NAVLE Feline Infectious 3

Question 1

What is the gold standard diagnostic test for confirming wet (effusive) FIP?

Accepted Answer

Effusion fluid RT-PCR for FCoV with immunostaining of macrophages

Answer

Immunostaining for FCoV antigen within macrophages in effusion fluid or tissue biopsy is the gold standard for definitive FIP diagnosis.

Question 2

Feline leukemia virus (FeLV) is classified into subtypes based on host range. Which subtype is associated with the most rapid disease progression and immunosuppression?

Accepted Answer

FeLV-T

Answer

FeLV-T is highly pathogenic, targets T lymphocytes directly causing profound lymphopenia and accelerated immunodeficiency.

Question 3

A kitten born to a queen with Toxoplasma gondii primary infection during pregnancy is most at risk for which clinical outcome?

Accepted Answer

Fading kitten syndrome with hepatic necrosis

Answer

Congenitally infected kittens develop severe disseminated toxoplasmosis with hepatic necrosis, often presenting as fading kittens.

Question 4

Which test best differentiates a vaccinated cat from a truly FeLV-infected cat when using a standard ELISA?

Accepted Answer

The ELISA detects p27 antigen which vaccines do not induce

Answer

FeLV ELISA tests detect the p27 core antigen released by replicating virus, not antibody, so vaccination does not produce a positive result.

Question 5

A cat is diagnosed with feline infectious anemia caused by Mycoplasma haemofelis. Which treatment is most appropriate?

Accepted Answer

Doxycycline with supportive care including blood transfusion if needed

Answer

Doxycycline is the first-line antibiotic for Mycoplasma haemofelis, with blood transfusion reserved for severely anemic cats.

NAVLE - North American Veterinary Licensing Examination Practice Test

NAVLE - North American Veterinary Licensing Examination Practice Test

NAVLE Feline Infectious 3