VTNE Veterinary Pharmacology 2

Question 1

Which opioid analgesic is most commonly used as a preanesthetic in dogs due to its sedative and analgesic properties?

Accepted Answer

Hydromorphone

Answer

Hydromorphone is a pure mu-opioid agonist widely used for preanesthesia in dogs because of its reliable sedation and potent analgesia.

Question 2

A cat receiving enrofloxacin at high doses is at risk for which serious adverse effect?

Accepted Answer

Retinal degeneration and blindness

Answer

High doses of enrofloxacin in cats can cause acute retinal degeneration leading to blindness due to fluoroquinolone toxicity specific to feline photoreceptors.

Question 3

Which drug class is used to treat heartworm disease (Dirofilaria immitis) adulticide therapy in dogs?

Accepted Answer

Melarsomine

Answer

Melarsomine dihydrochloride (Immiticide) is the only FDA-approved adulticide for treating adult heartworms in dogs.

Question 4

What is the mechanism of action of furosemide?

Accepted Answer

Inhibits the Na-K-2Cl cotransporter in the loop of Henle

Answer

Furosemide is a loop diuretic that inhibits the Na-K-2Cl cotransporter in the ascending limb of the loop of Henle, reducing sodium and water reabsorption.

Question 5

A dog is prescribed phenobarbital for seizure control. Which organ function should be monitored every 6 months?

Accepted Answer

Liver

Answer

Phenobarbital is hepatically metabolized and can cause hepatotoxicity with chronic use, so liver enzyme panels and bile acids should be monitored regularly.

VTNE - Veterinary Technician National Examination Practice Test

VTNE - Veterinary Technician National Examination Practice Test

VTNE Veterinary Pharmacology 2