1
NAVLE Practice Questions
A male gerbil is presented with a distinct oval area of alopecia on the mid-ventral
abdomen. The animal has been observed rubbing this area on objects around its
R
terrarium.
HE
What is the most appropriate interpretation?
A - Normal, do nothing
IG
B - Common site of mammary gland adenocarcinoma, biopsy can confirm
C - Sarcoptic mange, do a skin scrape
H
D - Trichophyton mentagrophytes, do a fungal culture
G
E - Demodex merioni infestation, treat with ivermectin
A - Normal, do nothing
IN
This is the normal location of the ventral marking gland (or pad) in gerbils. It is
Y
normal and more pronounced in males than females.
FL
Gerbils are often seen rubbing this area on things. This rubbing is thought to be a
form of territorial marking.
Demodex merioni occurs occasionally in older, debilitated gerbils.
, 2
A 5-month old steer is presented that is unthrifty-looking and failing to gain
weight. He appears somewhat lame, has a rough, light-colored hair coat and
depigmented hair around his eyes like spectacles.
R
The steer has a watery dark diarrhea full of gassy bubbles.
H
What is the diagnosis?
E
G
A - Selenium toxicity
I
B - Copper deficiency
H
C - Molybdenum deficiency
G
D - Quercus (Oak) poisoning
E - Magnesium deficiency
N
B. Copper deficiency
YI
This is copper deficiency, which presents with "Ain't Doin' Right" ( ADR ) signs :
L
ACHROMOTRICHIA (depigmented hair, especially around the eyes=
F
"SPECTACLES") rough coat, decreased milk yield, lameness and decreased
fertility, libido and "Peat Scours" also called "Teart" (severe scours with gas
bubbles).
Molybdenum toxicosis causes a secondary DEFICIENCY in Copper.
, 3
Oak poisoning is more a gradual, multisystemic disease (nephrotoxic,
hepatotoxic), can see PU/PD, hematuria, weight loss.
Tetany is the classic presentation of Hypomagnesemia in cattle, along with
R
hyperexcitability, ataxia, convulsions and death.
HE
Selenium toxicosis has many presentations depending on species, dose and
length of time exposed.
G
An 8 month old Rhodesian Ridgeback neutered male dog is presented with a
I
complaint of a chronic concretion of hair, sebum, and discharge on the dorsal
H
midline.
G
Physical examination reveals no abnormalities other than the accumulation of
N
debris on the dorsal midline with no local heat or swelling.
YI
There are no neurologic signs noted. The site is carefully clipped and prepared
L
and a small, skin-lined cavity is discovered.
F
Which one of the following is the most appropriate treatment?
A - Oral administration of two doses of ivermectin 2 weeks apart
NAVLE Practice Questions
A male gerbil is presented with a distinct oval area of alopecia on the mid-ventral
abdomen. The animal has been observed rubbing this area on objects around its
R
terrarium.
HE
What is the most appropriate interpretation?
A - Normal, do nothing
IG
B - Common site of mammary gland adenocarcinoma, biopsy can confirm
C - Sarcoptic mange, do a skin scrape
H
D - Trichophyton mentagrophytes, do a fungal culture
G
E - Demodex merioni infestation, treat with ivermectin
A - Normal, do nothing
IN
This is the normal location of the ventral marking gland (or pad) in gerbils. It is
Y
normal and more pronounced in males than females.
FL
Gerbils are often seen rubbing this area on things. This rubbing is thought to be a
form of territorial marking.
Demodex merioni occurs occasionally in older, debilitated gerbils.
, 2
A 5-month old steer is presented that is unthrifty-looking and failing to gain
weight. He appears somewhat lame, has a rough, light-colored hair coat and
depigmented hair around his eyes like spectacles.
R
The steer has a watery dark diarrhea full of gassy bubbles.
H
What is the diagnosis?
E
G
A - Selenium toxicity
I
B - Copper deficiency
H
C - Molybdenum deficiency
G
D - Quercus (Oak) poisoning
E - Magnesium deficiency
N
B. Copper deficiency
YI
This is copper deficiency, which presents with "Ain't Doin' Right" ( ADR ) signs :
L
ACHROMOTRICHIA (depigmented hair, especially around the eyes=
F
"SPECTACLES") rough coat, decreased milk yield, lameness and decreased
fertility, libido and "Peat Scours" also called "Teart" (severe scours with gas
bubbles).
Molybdenum toxicosis causes a secondary DEFICIENCY in Copper.
, 3
Oak poisoning is more a gradual, multisystemic disease (nephrotoxic,
hepatotoxic), can see PU/PD, hematuria, weight loss.
Tetany is the classic presentation of Hypomagnesemia in cattle, along with
R
hyperexcitability, ataxia, convulsions and death.
HE
Selenium toxicosis has many presentations depending on species, dose and
length of time exposed.
G
An 8 month old Rhodesian Ridgeback neutered male dog is presented with a
I
complaint of a chronic concretion of hair, sebum, and discharge on the dorsal
H
midline.
G
Physical examination reveals no abnormalities other than the accumulation of
N
debris on the dorsal midline with no local heat or swelling.
YI
There are no neurologic signs noted. The site is carefully clipped and prepared
L
and a small, skin-lined cavity is discovered.
F
Which one of the following is the most appropriate treatment?
A - Oral administration of two doses of ivermectin 2 weeks apart
