QUIZ CORNER

1. A client's unvaccinated cat will soon be exposed to panleukopenia virus in a boarding establishment, and you must decide how to best protect the cat against infection. Ranking in order from most rapid to least rapid induction of immunity, what is the protective potential of available products?

   1. antiserum, killed-virus vaccine, modified-live-virus (MLV) vaccine

   2. antiserum, modified-live-virus vaccine, killed-virus vaccine

   3. killed-virus vaccine, modified-live-virus vaccine, antiserum

   4. modified-live-virus vaccine, killed-virus vaccine, antiserum

   5. modified-live-virus vaccine, antiserum, killed-virus vaccine

2. Which one of the following causes cloudy, blue corneal edema in a dog 2 wk after vaccination for infectious canine hepatitis?

   1. synergistic immunosuppressive effects of distemper virus and parvovirus in the vaccine

   2. adenovirus-2 infection of the dog before vaccination

   3. hypersensitivity to adenovirus-1

   4. recrudescence of herpesviral infection because of the immunosuppressive effects of vaccination

   5. formation of immune complexes in the cornea from interaction of Bordetella in the vaccine and anti-Bordetella antibodies

3. In cattle, in which one of the following is infection most often characterized by excessive lacrimation, blepharospasm, and photophobia, followed by keratitis and an area of central corneal ulceration?

   1. bovine viral diarrhea virus

   2. Moraxella bovis

   3. Leptospira interrogans

   4. Haemophilus somnus

   5. Pasteurella hemolytica

4. Which of the following represents the primary impact of mosquitoes on equine husbandry and disease?

   1. anemia from blood loss

   2. cutaneous nodular hypersensitity

   3. transmission of blood parasites

   4. transmission of viruses

   5. weight loss from annoyance

5. In a white cat that spends time indoors and outdoors, which of the following is most likely associated with ulcerated lesions on the nasal planum and ear margins?

   1. dermatophytosis

   2. eosinophilic granuloma complex

   3. squamous-cell carcinoma

   4. pemphigus foliaceus

   5. mast-cell tumor

6. An 18-month-old Holstein bull, housed in a common pen with approximately 20 other young bulls awaiting progeny testing, develops a 4-cm diameter cauliflower-like mass near the tip of the penis. The mass is attached by a small stalk to the mucosa and bleeds easily from its surface. What is the preferred therapy for this bull?

   1. long-term broad-spectrum antibiotics

   2. surgical removal of the mass, followed by chemotherapy

   3. slaughter because of the poor prognosis, unless the bull is valuable

   4. surgical removal of the mass

   5. cryotherapy

7. In a dog with severe hepatic cirrhosis of unknown origin and associated encephalopathy and ascites, which one of the following should treatment not include?

   1. dexamethasone

   2. lactulose

   3. oral neomycin

   4. a low-protein diet

   5. a low-salt diet

8. In a 5-month-old dog with a moderately severe congenital portosystemic shunt, which laboratory finding would not be expected?

   1. markedly increased postprandial serum bile acid concentration

   2. markedly increased serum alanine aminotransferase activity

   3. moderate hypoalbuminemia

   4. decreased blood urea nitrogen level

   5. moderate hypocholesterolemia

9. A middle-aged dog that is kept outside on a large farm is found moribund and recumbent. The dog has a distended abdomen, but ballottement does not produce a fluid wave. After several attempts at abdominocentesis, you finally obtain 5 mL of bloody fluid containing 3 small blood clots. Which of the following does the dog most likely have?

   1. a hepatic rupture with subsequent bleeding

   2. a coagulopathy, possibly caused by rodenticide poisoning

   3. a chronically bleeding abdominal neoplasm

   4. a splenic rupture with subsequent bleeding

   5. no evidence of hemoabdomen

10. Which of these are the most likely causes of sudden death without prior clinical signs in grow-finish pigs?

    1. gastric volvulus, selenium deficiency, and swine dysentery

    2. cardiac insufficiency, organophosphate toxicity, and vitamin D deficiency

    3. mesenteric torsion, swine dysentery, and hemorrhagic bowel syndrome

    4. selenium deficiency, necrotic enteritis, and mycoplasmal pneumonia

    5. Actinobacillosis pleuropneumoniae, systemic salmonellosis, and porcine stress syndrome

(See p. 595 for answers.)