ICVA Canine Internal Medicine 3

Question 1

A 9-year-old intact male dog presents with preputial discharge, lethargy, and PU/PD. Prostatic wash cytology shows septic suppurative inflammation. What is the most appropriate initial treatment?

Accepted Answer

Broad-spectrum antibiotics and castration

Answer

Bacterial prostatitis requires antibiotics that penetrate the blood-prostate barrier (e.g., fluoroquinolones, trimethoprim-sulfa), and castration reduces recurrence.

Question 2

Which finding on thoracic radiographs is most consistent with left-sided congestive heart failure in a dog?

Accepted Answer

Pulmonary venous distension and perihilar interstitial pattern

Answer

Left-sided CHF causes pulmonary venous congestion, leading to interstitial and alveolar patterns beginning perihilarly.

Question 3

A dog is diagnosed with hypothyroidism. Which serum test is considered the gold standard for confirming the diagnosis?

Accepted Answer

Free T4 by equilibrium dialysis (fT4ED)

Answer

Free T4 measured by equilibrium dialysis is the most specific and sensitive single test for canine hypothyroidism.

Question 4

A 4-year-old Boxer presents with episodic weakness and syncope. A Holter monitor reveals paroxysmal ventricular tachycardia. Which drug is first-line therapy for this arrhythmia in dogs?

Accepted Answer

Sotalol

Answer

Sotalol is the preferred antiarrhythmic for ventricular arrhythmias in Boxers, with both class II and class III activity.

Question 5

Which parameter is most useful for differentiating prerenal azotemia from intrinsic renal failure in a dog?

Accepted Answer

Response to IV fluid challenge and urine specific gravity

Answer

Prerenal azotemia resolves with fluid therapy and is associated with concentrated urine (USG >1.030), whereas renal failure shows isosthenuria and persistent azotemia.

(ICVA) International Council for Veterinary Assessment Practice Test

(ICVA) International Council for Veterinary Assessment Practice Test

ICVA Canine Internal Medicine 3