NAVLE EXAM AND PRACTICE EXAM NEWEST 2025/2026 ACTUAL EXAM COMPLETE 600
QUESTIONS AND CORRECT DETAILED ANSWERS/NEWEST UPDATE!!!
Question 1
A 3-year-old post-partum Chihuahua presents with muscle tremors, tetany, and generalized
seizures. What is the most appropriate immediate treatment?
A) Diazepam IV
B) Phenobarbital IM
C) Calcium gluconate IV
D) Magnesium sulfate IV
E) Dextrose 50% IV
Correct Answer: C) Calcium gluconate IV
Rationale: Toy breed dogs are highly susceptible to eclampsia (puerperal tetany) due to
heavy lactation. The clinical signs of tetany and seizures result from hypocalcemia, making
intravenous calcium gluconate the life-saving treatment of choice.
Question 2
Which group of dogs is statistically predisposed to developing nasal aspergillosis?
A) Brachycephalic
B) Mesocephalic
C) Dolichocephalic
D) Chondrodysplastic
E) Toy breeds
Correct Answer: C) Dolichocephalic
Rationale: Long-nosed (dolichocephalic) breeds, such as German Shepherds and
Greyhounds, are predisposed to fungal rhinitis caused by Aspergillus fumigatus, likely due
to the large surface area of the nasal turbinates.
Question 3
Which of the following is NOT a recognized component of the surgical management for a
ruptured Cranial Cruciate Ligament (CCL) in a dog?
B) Cranial transposition of the fibular head
B) Leveling of the tibial plateau (TPLO)
C) Weight loss as an adjunct
D) Recession trochleoplasty
E) Lateral suture stabilization
Correct Answer: D) Recession trochleoplasty
Rationale: Recession trochleoplasty is a technique used to correct a luxating patella by
deepening the femoral groove. CCL management focuses on stabilizing the tibia relative to
the femur via mechanics like fibular head transposition or osteotomies like TPLO.
Question 4
Which parasite is the primary cause of Cutaneous Larval Migrans (CLM) in humans?
, 2
A) Toxocara canis
B) Ancylostoma caninum
C) Trichuris vulpis
D) Dipylidium caninum
E) Giardia duodenalis
Correct Answer: B) Ancylostoma caninum
Rationale: Hookworms (Ancylostoma) are the primary cause of CLM. The larvae penetrate
human skin and migrate, causing serpentine, itchy lesions. Roundworms (Toxocara) cause
Visceral Larval Migrans (VLM).
Question 5
What is the specific antidote for a dog that has ingested ethylene glycol (antifreeze) within the
last few hours?
A) N-acetylcysteine
B) Vitamin K1
C) 4-methylpyrazole (4-MP)
D) Atropine
E) Methylene blue
Correct Answer: C) 4-methylpyrazole (4-MP)
Rationale: 4-methylpyrazole (fomepizole) inhibits alcohol dehydrogenase, preventing the
metabolism of ethylene glycol into its toxic metabolites (glycolic acid and oxalic acid).
Ethanol is an alternative but less preferred.
Question 6
Portosystemic shunts (PSS) in small breed dogs, such as Yorkies or Maltese, are most
commonly:
A) Intrahepatic
B) Extrahepatic
C) Multiple acquired shunts
D) Caused by cirrhosis
E) Found in the left kidney
Correct Answer: B) Extrahepatic
Rationale: Congenital PSS in small breeds are typically extrahepatic (vessels bypassing the
liver outside the parenchyma). Large breed dogs more commonly present with intrahepatic
shunts.
Question 7
A dog presents with large bowel diarrhea. What is the typical clinical presentation?
A) Large volume, infrequent defecation
B) Small volume, frequent defecation (tenesmus)
C) Profuse watery diarrhea with weight loss
, 3
D) Melena
E) Regurgitation
Correct Answer: B) Small volume, frequent defecation (tenesmus)
Rationale: Large bowel diarrhea (colitis) is characterized by increased frequency, urgency,
tenesmus, and the presence of mucus or hematochezia, but usually involves small volumes
of stool.
Question 8
In contrast to large bowel diarrhea, small bowel diarrhea is typically characterized by:
A) Tenesmus and urgency
B) Small amounts of stool
C) Large volume of stool passed infrequently
D) Fresh red blood (hematochezia)
E) Increased frequency (>5 times/day)
Correct Answer: C) Large volume of stool passed infrequently
Rationale: Small bowel diarrhea involves the malabsorption of nutrients and water, leading
to a significant increase in the total volume of stool produced per event.
Question 9
How is Babesia canis primarily transmitted to dogs, and what are the classic clinical signs?
A) Ingestion of rabbit feces; cough
B) Tick vector; fever and weakness
C) Mosquito vector; heart failure
D) Direct contact; skin rash
E) Aerosol; nasal discharge
Correct Answer: B) Tick vector; fever and weakness
Rationale: Babesia is a protozoan parasite transmitted by Rhipicephalus ticks. It invades
red blood cells, causing hemolytic anemia, fever, hemoglobinuria, and profound weakness.
Question 10
What is the Treatment of Choice (TOC) for a dog suffering from severe carpal hyperextension
injury due to a fall?
A) External coaptation (splinting) for 6 months
B) Lateral suture stabilization
C) Carpal arthrodesis
D) Tendon transfer
E) Physical therapy alone
Correct Answer: C) Carpal arthrodesis
Rationale: Carpal hyperextension results from the rupture of the palmar fibrocartilage.
This does not heal with splinting; surgical fusion of the joint (arthrodesis) is required to
restore weight-bearing function.
, 4
Question 11
Which laboratory profile is characteristic of a dog in Disseminated Intravascular Coagulation
(DIC)?
A) Increased platelets, decreased PT/APTT
B) Decreased platelets, increased PT, APTT, TT, and FDPs
C) Normal platelets, increased BMBT only
D) Decreased platelets, normal APTT
E) Increased fibrinogen, decreased FDPs
Correct Answer: B) Decreased platelets, increased PT, APTT, TT, and FDPs
Rationale: DIC is a consumptive coagulopathy. It consumes platelets and clotting factors
(prolonging PT/APTT/TT) and increases the breakdown of clots (increasing FDPs and D-
dimers).
Question 12
A dog with simple thrombocytopenia (e.g., IMT) will typically show which lab pattern?
A) Increased PT and APTT
B) Decreased platelets and increased BMBT (with normal PT/APTT)
C) Decreased platelets and decreased BMBT
D) Normal platelets and increased PT
E) Normal BMBT and increased FDPs
Correct Answer: B) Decreased platelets and increased BMBT
Rationale: Thrombocytopenia affects the primary hemostatic plug, leading to a prolonged
Buccal Mucosal Bleeding Time (BMBT). Secondary hemostasis (PT/APTT) remains
normal unless a concurrent factor deficiency exists.
Question 13
In a dog with Von Willebrand’s Disease (vWD), what would you expect to see on a coagulation
panel?
A) Decreased platelet count and increased PT
B) Normal platelet count and increased BMBT
C) Decreased platelet count and normal BMBT
D) Increased APTT and normal BMBT
E) Decreased TT and increased FDPs
Correct Answer: B) Normal platelet count and increased BMBT
Rationale: vWD is a functional platelet defect (lack of vWF factor for adhesion). The
number of platelets is normal, but they cannot stick to the vessel wall, leading to a
prolonged BMBT.
Question 14
A dog has ingested an anticoagulant rodenticide. Which coagulation test will likely be the first to
show an abnormality?
QUESTIONS AND CORRECT DETAILED ANSWERS/NEWEST UPDATE!!!
Question 1
A 3-year-old post-partum Chihuahua presents with muscle tremors, tetany, and generalized
seizures. What is the most appropriate immediate treatment?
A) Diazepam IV
B) Phenobarbital IM
C) Calcium gluconate IV
D) Magnesium sulfate IV
E) Dextrose 50% IV
Correct Answer: C) Calcium gluconate IV
Rationale: Toy breed dogs are highly susceptible to eclampsia (puerperal tetany) due to
heavy lactation. The clinical signs of tetany and seizures result from hypocalcemia, making
intravenous calcium gluconate the life-saving treatment of choice.
Question 2
Which group of dogs is statistically predisposed to developing nasal aspergillosis?
A) Brachycephalic
B) Mesocephalic
C) Dolichocephalic
D) Chondrodysplastic
E) Toy breeds
Correct Answer: C) Dolichocephalic
Rationale: Long-nosed (dolichocephalic) breeds, such as German Shepherds and
Greyhounds, are predisposed to fungal rhinitis caused by Aspergillus fumigatus, likely due
to the large surface area of the nasal turbinates.
Question 3
Which of the following is NOT a recognized component of the surgical management for a
ruptured Cranial Cruciate Ligament (CCL) in a dog?
B) Cranial transposition of the fibular head
B) Leveling of the tibial plateau (TPLO)
C) Weight loss as an adjunct
D) Recession trochleoplasty
E) Lateral suture stabilization
Correct Answer: D) Recession trochleoplasty
Rationale: Recession trochleoplasty is a technique used to correct a luxating patella by
deepening the femoral groove. CCL management focuses on stabilizing the tibia relative to
the femur via mechanics like fibular head transposition or osteotomies like TPLO.
Question 4
Which parasite is the primary cause of Cutaneous Larval Migrans (CLM) in humans?
, 2
A) Toxocara canis
B) Ancylostoma caninum
C) Trichuris vulpis
D) Dipylidium caninum
E) Giardia duodenalis
Correct Answer: B) Ancylostoma caninum
Rationale: Hookworms (Ancylostoma) are the primary cause of CLM. The larvae penetrate
human skin and migrate, causing serpentine, itchy lesions. Roundworms (Toxocara) cause
Visceral Larval Migrans (VLM).
Question 5
What is the specific antidote for a dog that has ingested ethylene glycol (antifreeze) within the
last few hours?
A) N-acetylcysteine
B) Vitamin K1
C) 4-methylpyrazole (4-MP)
D) Atropine
E) Methylene blue
Correct Answer: C) 4-methylpyrazole (4-MP)
Rationale: 4-methylpyrazole (fomepizole) inhibits alcohol dehydrogenase, preventing the
metabolism of ethylene glycol into its toxic metabolites (glycolic acid and oxalic acid).
Ethanol is an alternative but less preferred.
Question 6
Portosystemic shunts (PSS) in small breed dogs, such as Yorkies or Maltese, are most
commonly:
A) Intrahepatic
B) Extrahepatic
C) Multiple acquired shunts
D) Caused by cirrhosis
E) Found in the left kidney
Correct Answer: B) Extrahepatic
Rationale: Congenital PSS in small breeds are typically extrahepatic (vessels bypassing the
liver outside the parenchyma). Large breed dogs more commonly present with intrahepatic
shunts.
Question 7
A dog presents with large bowel diarrhea. What is the typical clinical presentation?
A) Large volume, infrequent defecation
B) Small volume, frequent defecation (tenesmus)
C) Profuse watery diarrhea with weight loss
, 3
D) Melena
E) Regurgitation
Correct Answer: B) Small volume, frequent defecation (tenesmus)
Rationale: Large bowel diarrhea (colitis) is characterized by increased frequency, urgency,
tenesmus, and the presence of mucus or hematochezia, but usually involves small volumes
of stool.
Question 8
In contrast to large bowel diarrhea, small bowel diarrhea is typically characterized by:
A) Tenesmus and urgency
B) Small amounts of stool
C) Large volume of stool passed infrequently
D) Fresh red blood (hematochezia)
E) Increased frequency (>5 times/day)
Correct Answer: C) Large volume of stool passed infrequently
Rationale: Small bowel diarrhea involves the malabsorption of nutrients and water, leading
to a significant increase in the total volume of stool produced per event.
Question 9
How is Babesia canis primarily transmitted to dogs, and what are the classic clinical signs?
A) Ingestion of rabbit feces; cough
B) Tick vector; fever and weakness
C) Mosquito vector; heart failure
D) Direct contact; skin rash
E) Aerosol; nasal discharge
Correct Answer: B) Tick vector; fever and weakness
Rationale: Babesia is a protozoan parasite transmitted by Rhipicephalus ticks. It invades
red blood cells, causing hemolytic anemia, fever, hemoglobinuria, and profound weakness.
Question 10
What is the Treatment of Choice (TOC) for a dog suffering from severe carpal hyperextension
injury due to a fall?
A) External coaptation (splinting) for 6 months
B) Lateral suture stabilization
C) Carpal arthrodesis
D) Tendon transfer
E) Physical therapy alone
Correct Answer: C) Carpal arthrodesis
Rationale: Carpal hyperextension results from the rupture of the palmar fibrocartilage.
This does not heal with splinting; surgical fusion of the joint (arthrodesis) is required to
restore weight-bearing function.
, 4
Question 11
Which laboratory profile is characteristic of a dog in Disseminated Intravascular Coagulation
(DIC)?
A) Increased platelets, decreased PT/APTT
B) Decreased platelets, increased PT, APTT, TT, and FDPs
C) Normal platelets, increased BMBT only
D) Decreased platelets, normal APTT
E) Increased fibrinogen, decreased FDPs
Correct Answer: B) Decreased platelets, increased PT, APTT, TT, and FDPs
Rationale: DIC is a consumptive coagulopathy. It consumes platelets and clotting factors
(prolonging PT/APTT/TT) and increases the breakdown of clots (increasing FDPs and D-
dimers).
Question 12
A dog with simple thrombocytopenia (e.g., IMT) will typically show which lab pattern?
A) Increased PT and APTT
B) Decreased platelets and increased BMBT (with normal PT/APTT)
C) Decreased platelets and decreased BMBT
D) Normal platelets and increased PT
E) Normal BMBT and increased FDPs
Correct Answer: B) Decreased platelets and increased BMBT
Rationale: Thrombocytopenia affects the primary hemostatic plug, leading to a prolonged
Buccal Mucosal Bleeding Time (BMBT). Secondary hemostasis (PT/APTT) remains
normal unless a concurrent factor deficiency exists.
Question 13
In a dog with Von Willebrand’s Disease (vWD), what would you expect to see on a coagulation
panel?
A) Decreased platelet count and increased PT
B) Normal platelet count and increased BMBT
C) Decreased platelet count and normal BMBT
D) Increased APTT and normal BMBT
E) Decreased TT and increased FDPs
Correct Answer: B) Normal platelet count and increased BMBT
Rationale: vWD is a functional platelet defect (lack of vWF factor for adhesion). The
number of platelets is normal, but they cannot stick to the vessel wall, leading to a
prolonged BMBT.
Question 14
A dog has ingested an anticoagulant rodenticide. Which coagulation test will likely be the first to
show an abnormality?
