NAVLE NAVLE Avian and Exotic Animal Medicine 2

Question 1

Metabolic bone disease (MBD) in captive reptiles is most commonly caused by which combination of factors?

Accepted Answer

Calcium/phosphorus imbalance and UV-B light deficiency

Answer

MBD in reptiles results from inadequate dietary calcium, improper Ca:P ratios, and insufficient UV-B light for endogenous vitamin D3 synthesis.

Question 2

A green iguana presents with dysecdysis (retained shed). What is the safest and most appropriate initial treatment?

Accepted Answer

Soaking in warm water for 15–30 minutes

Answer

Warm water soaks hydrate and soften retained shed safely, making it the recommended first-line intervention for dysecdysis.

Question 3

Cryptosporidium serpentis infection in ball pythons most characteristically affects which organ, producing a pathognomonic clinical sign?

Accepted Answer

Stomach, causing mid-body swelling and regurgitation

Answer

Cryptosporidium serpentis causes gastric hypertrophy in snakes, manifesting as a classic mid-body bulge and chronic regurgitation.

Question 4

When treating a reptile patient, why is it essential to maintain the animal within its preferred optimal temperature zone (POTZ)?

Accepted Answer

Reptiles are ectotherms, so immune function and drug metabolism depend on environmental temperature

Answer

As ectotherms, reptiles rely on external heat sources for all metabolic processes including immune response and pharmacokinetics.

Question 5

Which fungal organism causes 'yellow fungus disease' (invasive necrotizing mycosis) in bearded dragons?

Accepted Answer

Nannizziopsis guarroi

Answer

Nannizziopsis guarroi causes yellow fungus disease in bearded dragons, producing invasive, necrotizing cutaneous lesions that are often fatal.

NAVLE - North American Veterinary Licensing Examination Practice Test