NAVLE Cheat Sheet 2026

The 30 highest-yield NAVLE facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. Which local anesthetic has the highest risk of causing methemoglobinemia in cats? → Benzocaine
2. Which of the following best describes the pharmacokinetic term 'volume of distribution' (Vd)? → A theoretical volume relating plasma drug concentration to total drug in the body
3. Air sac mites (Sternostoma tracheacolum) most commonly cause respiratory disease in which group of birds? → Canaries and finches
4. Which feline coronavirus (FCoV) mutation is classically associated with the transition from enteric infection to feline infectious peritonitis (FIP)? → 3c gene loss-of-function mutation
5. A cat presents with a 'ground-glass' opacity on thoracic radiographs. Which condition is MOST associated with this finding? → Pulmonary edema
6. Which anesthetic agent is considered safest for induction in chelonians due to minimal cardiovascular depression? → Alfaxalone
7. Which drug is used to reverse the sedative and analgesic effects of medetomidine in dogs and cats? → Atipamezole
8. Which of the following is the recommended first-line treatment for lead toxicosis in birds? → Calcium EDTA
9. Which vaccination protocol is most effective for preventing Bovine Virus Diarrhea (BVD) in a cow-calf operation? → Modified live BVD vaccine given before breeding
10. Which of the following organisms is most frequently present in feline pyometra? → Escherichia coli
11. Which drug is used to treat urinary incontinence in spayed female dogs by increasing urethral sphincter tone? → Phenylpropanolamine (PPA)
12. Which breed is most predisposed to developing dilated cardiomyopathy (DCM) and typically presents with atrial fibrillation as its most common arrhythmia? → Irish Wolfhound
13. A community outbreak of E. coli O157:H7 is traced to a petting zoo. The primary mode of transmission in this setting is: → Fecal-oral transmission through direct animal contact
14. Pinkeye (Infectious Bovine Keratoconjunctivitis) in a cow herd is most commonly caused by which organism? → Moraxella bovis
15. Organophosphate toxicity in animals is treated with which combination of drugs? → Atropine and pralidoxime (2-PAM)
16. Which serum biomarker is most specific for acute pancreatitis diagnosis in cats? → Feline pancreatic lipase immunoreactivity (fPLI/Spec fPL)
17. Which antifungal drug is currently the first-line treatment for aspergillosis in birds? → Voriconazole
18. Which of the following findings on an ACTH stimulation test is most consistent with a diagnosis of typical hypoadrenocorticism (Addison's disease) in a dog? → Low baseline cortisol with a minimal to no response post-ACTH
19. Which critical temperature range is considered the 'danger zone' for bacterial growth in potentially hazardous foods? → 40°F to 140°F (4°C to 60°C)
20. On ultrasound, a dog's liver shows hyperechoic parenchyma compared to the spleen and falciform fat. This finding is most consistent with: → Hepatic lipidosis
21. A 10-year-old diabetic cat is scheduled for dental extraction. Which inhalant anesthetic is preferred due to its lower solubility and faster recovery profile? → Sevoflurane
22. Which radiographic sign is MOST characteristic of a diaphragmatic hernia in a dog? → Loss of diaphragmatic outline with abdominal organs in the thorax
23. On a 500-cow dairy, the conception rate to first service drops from 42% to 28% over 3 months. Which herd-level factor should be investigated first? → Heat detection efficiency and estrus expression
24. Which inhalant anesthetic is associated with the GREATEST cardiovascular depression and sensitization of the myocardium to catecholamine-induced arrhythmias? → Halothane
25. In nuclear scintigraphy used in veterinary medicine, which radiopharmaceutical is most commonly used for bone scanning in dogs? → Technetium-99m methylene diphosphonate (MDP)
26. Which fluoroquinolone is known to cause retinal degeneration in cats, particularly at high doses? → Enrofloxacin
27. Which disinfection method is considered most effective for inactivating Cryptosporidium parvum oocysts in drinking water? → UV irradiation
28. Which of the following conditions or interventions would DECREASE MAC (reduce the anesthetic requirement) of an inhalant agent? → Opioid premedication
29. Which ultrasonographic finding is MOST consistent with gastric dilatation-volvulus (GDV) versus simple dilatation in a dog? → Compartmentalization of the stomach into two gas-filled regions on the right lateral view
30. A dog presents with acute onset of right-sided head tilt, nystagmus with the fast phase to the left, and rolling. MRI is normal. The most likely diagnosis is: → Idiopathic vestibular syndrome