ZUKU NAVLE COMPREHENSIVE EXAM 2026
QUESTIONS WITH SOLUTIONS GRADED A+
◉ Pour-on eprinomectin. Answer: On a cold winter day in the
Northeastern U.S., a lactating dairy cow is examined for pruritus and
crusts around the perineum.
A skin scrape shows some kind of mite with long legs and short
unsegmented pedicles.
What should be done next?
A - Amitraz SQ
B - Quarantine animal
C - Slaughter
D - Pour-on eprinomectin
E - Topical furazolidone
◉ Remove via endoscopy. Answer: A client presents a 25-pound dog
(11.4 kg) who was just observed swallowing a bottle cap.
Which one of the following choices would be the safest approach for
this dog.
A - Remove via gastrotomy
,B - Administer silicon coated magnet to keep it in stomach until
dissolution
C - Administer motility modifiers to encourage passage
D - Remove via endoscopy
E - Administer a proton pump inhibitor to stimulate gastric acid
secretion
◉ C - Chorioptic mange. Answer: A 12-year-old Belgian draft horse
gelding is presented with severe hyperkeratosis and scaling on the
caudal aspects of all four pasterns. The parasite shown below is found on
a skin scraping of one of the lesions.
Which one of the following choices is the correct diagnosis?
A - Demodecosis
B - Sarcoptic dermatitis
C - Chorioptic mange
D - Cheyletiellosis
E - Trombiculiasis
◉ B - Fever, petechiations, hemolytic anemia. Answer: Cytological
evaluation of a blood smear from a sick horse reveals the following (see
below).
Which constellation of signs would you expect in a typical acute case of
a horse with this disease?
A - Weight loss, partial anorexia, poor performance
,B - Fever, petechiations, hemolytic anemia
C - Elevated serum liver enzymes, hyperammonemia, head-pressing
D - Limb edema, ventricular arrhythmias, ataxia
E - Nystagmus, head tilt, strabismus
◉ E - Bone spavin. Answer: A nine-year-old Quarterhorse mare is
presented with a right hind limb lameness.
She tends to drag the right toe, and has a stabbing gait in that limb
(adducts hindlimb, then suddenly abducts it just before the hoof hits the
ground).
Hock flexion of the right hind significantly exacerbates the lameness for
5-6 strides. A radiograph of the hock is taken, shown below.
What is the common name for this problem?
A - Osselets
B - Tarsal hydrarthrosis
C - Splints
D - Ringbone
E - Bone spavin
◉ E - Sarcoptes scabei. Answer: A two-year-old beagle is presented with
patchy alopecia, papules, and thick crusts, on the ventral abdomen,
chest, ears, and elbows.
The owner reports intense pruritus and a positive pinnal-pedal reflex is
observed.
, A flea comb does not reveal any fleas.
The image below shows what was discovered from a skin scraping.
Which one of the following organisms is depicted in the image?
A - Straelensia cynotis
B - Neotrombicula autumnalis
C - Cheyletiella yasguri
D - Demodex canis
E - Sarcoptes scabei
◉ D - Papillomatosis. Answer: This three-year-old horse is presented for
evaluation of this dry, horny, wart-like mass on the distal forelimb. This
horse also has smaller wart-like lesions on its muzzle. The other young
horses in the herd have similar lesions.
Which one of the following is the most likely diagnosis?
A - Melanomatosis
B - Trombiculosis
C - Dermatophilosis
D - Papillomatosis
E - Pediculosis
◉ C - Treat affected cows with 2 classes of dewormer. Answer: In
September in the Southeastern U.S., a two-year-old Angus heifer died
the previous night. She had a three-week history of poor appetite,
unthriftiness, and diarrhea.
QUESTIONS WITH SOLUTIONS GRADED A+
◉ Pour-on eprinomectin. Answer: On a cold winter day in the
Northeastern U.S., a lactating dairy cow is examined for pruritus and
crusts around the perineum.
A skin scrape shows some kind of mite with long legs and short
unsegmented pedicles.
What should be done next?
A - Amitraz SQ
B - Quarantine animal
C - Slaughter
D - Pour-on eprinomectin
E - Topical furazolidone
◉ Remove via endoscopy. Answer: A client presents a 25-pound dog
(11.4 kg) who was just observed swallowing a bottle cap.
Which one of the following choices would be the safest approach for
this dog.
A - Remove via gastrotomy
,B - Administer silicon coated magnet to keep it in stomach until
dissolution
C - Administer motility modifiers to encourage passage
D - Remove via endoscopy
E - Administer a proton pump inhibitor to stimulate gastric acid
secretion
◉ C - Chorioptic mange. Answer: A 12-year-old Belgian draft horse
gelding is presented with severe hyperkeratosis and scaling on the
caudal aspects of all four pasterns. The parasite shown below is found on
a skin scraping of one of the lesions.
Which one of the following choices is the correct diagnosis?
A - Demodecosis
B - Sarcoptic dermatitis
C - Chorioptic mange
D - Cheyletiellosis
E - Trombiculiasis
◉ B - Fever, petechiations, hemolytic anemia. Answer: Cytological
evaluation of a blood smear from a sick horse reveals the following (see
below).
Which constellation of signs would you expect in a typical acute case of
a horse with this disease?
A - Weight loss, partial anorexia, poor performance
,B - Fever, petechiations, hemolytic anemia
C - Elevated serum liver enzymes, hyperammonemia, head-pressing
D - Limb edema, ventricular arrhythmias, ataxia
E - Nystagmus, head tilt, strabismus
◉ E - Bone spavin. Answer: A nine-year-old Quarterhorse mare is
presented with a right hind limb lameness.
She tends to drag the right toe, and has a stabbing gait in that limb
(adducts hindlimb, then suddenly abducts it just before the hoof hits the
ground).
Hock flexion of the right hind significantly exacerbates the lameness for
5-6 strides. A radiograph of the hock is taken, shown below.
What is the common name for this problem?
A - Osselets
B - Tarsal hydrarthrosis
C - Splints
D - Ringbone
E - Bone spavin
◉ E - Sarcoptes scabei. Answer: A two-year-old beagle is presented with
patchy alopecia, papules, and thick crusts, on the ventral abdomen,
chest, ears, and elbows.
The owner reports intense pruritus and a positive pinnal-pedal reflex is
observed.
, A flea comb does not reveal any fleas.
The image below shows what was discovered from a skin scraping.
Which one of the following organisms is depicted in the image?
A - Straelensia cynotis
B - Neotrombicula autumnalis
C - Cheyletiella yasguri
D - Demodex canis
E - Sarcoptes scabei
◉ D - Papillomatosis. Answer: This three-year-old horse is presented for
evaluation of this dry, horny, wart-like mass on the distal forelimb. This
horse also has smaller wart-like lesions on its muzzle. The other young
horses in the herd have similar lesions.
Which one of the following is the most likely diagnosis?
A - Melanomatosis
B - Trombiculosis
C - Dermatophilosis
D - Papillomatosis
E - Pediculosis
◉ C - Treat affected cows with 2 classes of dewormer. Answer: In
September in the Southeastern U.S., a two-year-old Angus heifer died
the previous night. She had a three-week history of poor appetite,
unthriftiness, and diarrhea.
