NAVLE (North American Veterinary Licensing Examination) practice questions

Question 1

A 3-year-old male intact Labrador retriever is presented for acute onset vomiting and profuse watery diarrhea after boarding. He is depressed and tacky with a CRT of 3 seconds. A fecal flotation is negative. A SNAP parvovirus antigen test is positive. Which initial therapy is most appropriate to reduce mortality?

Accepted Answer

IV crystalloid resuscitation plus antiemetic and broad-spectrum parenteral antibiotics

Answer

Oral metronidazole and a bland diet at home

Answer

Immediate administration of hyperimmune serum as the sole therapy

Answer

High-dose corticosteroids to reduce intestinal inflammation

Answer

Loperamide to reduce diarrhea and fluid loss

Question 2

A 9-year-old neutered male domestic shorthair cat has acute onset open-mouth breathing and is sitting in sternal recumbency with elbows abducted. Mucous membranes are pale. Thoracic auscultation reveals markedly muffled heart and lung sounds bilaterally. Which immediate diagnostic/therapeutic step is most appropriate?

Accepted Answer

Oxygen supplementation and thoracocentesis

Answer

Thoracic radiographs in lateral and DV views

Answer

Sedated bronchoalveolar lavage

Answer

IV furosemide bolus and reassess in 30 minutes

Answer

Echocardiography prior to any intervention

Question 3

A 6-year-old Quarter Horse gelding is presented for acute colic. He has a heart rate of 64 bpm, prolonged CRT (3.5 seconds), and moderate abdominal distension. Nasogastric intubation yields 10 liters of reflux. Rectal exam suggests distended small intestine. Which is the most appropriate next step?

Accepted Answer

Refer immediately for surgical evaluation while continuing IV fluids and decompression

Answer

Administer mineral oil and walk the horse for 2 hours

Answer

Provide flunixin and discharge if pain improves

Answer

Perform a caudal epidural to reduce pain and straining

Answer

Administer neostigmine to stimulate intestinal motility

Question 4

A dairy reports an increase in late-term abortions over the past month. Several cows have retained placentas. The farm uses a communal cat population for rodent control, and feed is stored in an open-sided shed. Which agent is most consistent with this pattern and risk factor?

Accepted Answer

Toxoplasma gondii

Answer

Leptospira interrogans serovar Hardjo

Answer

Neospora caninum

Answer

Bovine viral diarrhea virus

Answer

Brucella abortus

Question 5

A 4-week-old group of weaned pigs develops watery diarrhea and dehydration. Mortality is low but growth rate has dropped. Necropsy reveals thickened small intestinal mucosa and enlarged mesenteric lymph nodes. Histopathology shows villous atrophy with intracellular protozoal stages at the brush border. Which is the…

Accepted Answer

Coccidiosis due to Isospora suis

Answer

Transmissible gastroenteritis

Answer

Salmonellosis

Answer

Lawsonia intracellularis infection

Answer

Rotavirus infection

Question 6

A 6-year-old spayed female cat is presented for progressive lethargy and anorexia. Physical exam reveals icterus and a palpable cranial abdominal mass. CBC shows mild nonregenerative anemia. Chemistry shows marked hyperbilirubinemia and increased ALP and GGT. Abdominal ultrasound reveals extrahepatic biliary…

Accepted Answer

Triaditis (cholangitis, pancreatitis, and inflammatory bowel disease)

Answer

Hyperadrenocorticism

Answer

Exocrine pancreatic insufficiency as the primary disorder

Answer

Primary hyperparathyroidism

Answer

Hemangiosarcoma of the spleen

Question 7

A client brings in a dog with a comminuted open tibial fracture after being hit by a car. The client is distressed and asks, "Just do whatever you need—money isn't an issue." Which is the most appropriate next step regarding consent?

Accepted Answer

Provide an estimate and obtain informed consent including risks, alternatives, and likely outcomes before proceeding

Answer

Proceed with surgery immediately because the client gave verbal permission

Answer

Have the client sign a blanket consent form without discussing specific risks

Answer

Delay treatment until the client can provide written consent the next day

Answer

Recommend euthanasia because open fractures have poor prognosis

Question 8

A 5-year-old dairy cow is 2 days postpartum and has decreased appetite, reduced milk production, and sweet acetone odor on the breath. She is bright but has firm rumen contents and scant feces. Urine ketones are strongly positive. Which treatment is most appropriate?

Accepted Answer

Oral propylene glycol and address energy balance; consider IV dextrose if severe

Answer

IV calcium borogluconate only

Answer

High-dose long-acting oxytetracycline

Answer

Oral magnesium oxide and pasture turnout

Answer

Immediate rumenotomy

Question 9

A 12-year-old Thoroughbred mare has a 3-month history of weight loss, intermittent fever, ventral edema, and lethargy. CBC shows anemia of chronic disease and hyperglobulinemia. Abdominal ultrasound reveals splenomegaly and multiple hypoechoic splenic nodules. Which diagnostic test is most appropriate to confirm the…

Accepted Answer

Splenic aspirate/biopsy with cytology/histopathology

Answer

Serum amyloid A concentration

Answer

Coggins test (AGID) for equine infectious anemia

Answer

Fecal egg count and deworming response trial

Answer

ACTH concentration for PPID

Question 10

A 10-week-old mixed-breed puppy with unknown vaccination history is adopted from a shelter. The puppy is healthy on exam. Which core vaccination plan is most appropriate to start today?

Accepted Answer

DA2PP today, repeat every 3–4 weeks until at least 16 weeks of age, plus rabies at appropriate age per local law

Answer

One dose of DA2PP today and no further vaccines until 1 year of age

Answer

Rabies vaccine today only, because maternal antibodies interfere with DA2PP

Answer

DA2PP today and booster in 6 months

Answer

Intranasal Bordetella only today

NAVLE (North American Veterinary Licensing Examination) practice questions

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