NAVLE EXAM AND PRACTICE EXAM NEWEST 2024 ACTUAL EXAM COMPLETE 600 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS) |ALREADY GRADED A+

1 | P a g e NAVLE EXAM AND PRACTICE EXAM NEWEST 2024 ACTUAL EXAM COMPLETE 600 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS) |ALREADY GRADED A+ NAVLE EXAM *Which of the following zoonotic pathogens is most likely to be acquired via raw goat milk?* A - Bacillus anthracis B - Brucella melitensis C -Brucella abortus D - Brucella suis E - Clostridium difficile - ANSWER- *B - Brucella melitensis* Rationale: B. melitensis is a severe pathogen in humans, as are B. abortus from cattle, B. suis from pigs and B. canis from dogs. *A 2-year-old female spayed German shepherd is presented with recurrent left thoracic limb lameness that is aggravated by exercise. Which one of the following choices is the most likely diagnosis?* A - Panosteitis B - Osteochondrosis 2 | P a g e C - Osteosarcoma D - Hypertrophic osteodystrophy E - Hypertrophic osteopathy - ANSWER- *B - Osteochondrosis* Rationale: Osteochondrosis of the caudal humeral head is the cause of the intermittent lameness. Radiographic interpretation Left shoulder- On the lateral radiograph, there is flattening of the caudal aspect of the humeral head with a linear mineral density that is separated from the joint surface. There is mild sclerosis of the caudal humeral head. Osteophytes are present on the caudal glenoid as well as in the interturburcular groove. On the ventrodorsal projections, osteophytes are additionally visible on the medial and lateral aspects of the glenoid. Right shoulder- On the lateral radiograph, the caudal humeral head is flattened and irregular with mild sclerosis of the subchondral bone. There are small osteophytes present on the caudal and distal glenoid as well as the inter-turburcular groove. *A budgerigar is showing signs of squamous metaplasia of the oral mucosa, conjunctiva, and upper airways. It has developed associated bacterial sinusitis (see image). In a pet bird, what are these clinical signs most suggestive of?* 3 | P a g e A - Hypervitaminosis D B - Hypovitaminosis D C - Hypovitaminosis A D - Hypocalcemia E - Iodine deficiency - ANSWER- *C - Hypovitaminosis A* Rationale: The functions of vitamin A are related to epithelial maintenance, vision, and skeletal development. In birds, problems with the skeleton or vision are rarely seen with vitamin A deficiency. Vitamin A deficiency can manifest as squamous metaplasia of the oral mucous membranes or glands. Glands may be entirely converted to squamous epithelium with keratin material and can look like abscesses or pustules but are essentially keratin cysts. They should be differentiated from lesions of pox, Candida, and Trichomonas. Lesions of the conjunctiva, nasolacrimal duct, upper GI tract, and upper respiratory tract can occur. Presenting signs may include severe dyspnea or respiratory signs. *A 4-year old domestic short haired male cat presents for an acute onset of vomiting and anorexia of one day duration. On physical exam you note the cat is depressed and approximately 5?hydrated. Radiographs show an abnormally increased amount of plication of the small intestines. What is your most likely diagnosis?* A - Lymphoma B - Hepatic lipidosis C - Pancreatitis 4 | P a g e D - String foreign body E - Panleukopenia - ANSWER- *D - String foreign body* Rationale: The radiographic description is classic for string foreign bodies. Panleukopenia is not likely because of the radiographic findings, and you would also expect more systemic signs such as respiratory disease and fever. With pancreatitis cats do not vomit as commonly as dogs. They usually show vague nonspecific signs. Hepatic lipidosis would not result in an acute onset of vomiting. *A commercial pig farm experiences an explosive outbreak of respiratory disease with high mortality, primarily in young pigs under 6 months of age. Affected pigs show severe respiratory distress, fever up to 107°F (41.5°C), anorexia, and reluctance to move. Some animals display open-mouth breathing with a blood-stained, frothy nasal and oral discharge. On necropsy, the lungs are bilaterally dark and swollen and ooze bloody fluid from the cut surface. Which one of the following choices is the most likely diagnosis?* A - Mycoplasma hyopneumoniae B - Fusobacterium necrophorum C - Actinobacillus pleuropneumoniae D - Haemophilus parahaemolyticus E - Swine influenza - ANSWER- *C - Actinobacillus pleuropneumoniae*