NAVLE Veterinary Anesthesia and Pain Management 4

Question 1

A 6-year-old Labrador is undergoing a splenectomy under isoflurane anesthesia. The end-tidal CO2 rises to 65 mmHg. What is the most appropriate initial intervention?

Accepted Answer

Increase respiratory rate on the ventilator

Answer

Increasing the ventilator rate will increase minute ventilation and eliminate the excess CO2, correcting the hypercapnia.

Question 2

Which opioid is most appropriate for epidural administration in dogs to provide extended postoperative analgesia with minimal motor blockade?

Accepted Answer

Morphine

Answer

Preservative-free morphine administered epidurally provides long-duration analgesia (12–24 hours) with minimal motor effects due to its hydrophilicity.

Question 3

A cat anesthetized with ketamine/diazepam develops prolonged apnea after induction. Which characteristic of ketamine best explains this risk?

Accepted Answer

Ketamine causes dose-dependent respiratory depression at high doses

Answer

While ketamine is generally considered a respiratory-sparing agent, high or rapidly administered doses can cause dose-dependent apnea in cats.

Question 4

During anesthesia of a horse, you notice the mean arterial pressure drops to 55 mmHg. After adjusting vaporizer settings, which drug is most appropriate to improve cardiac output?

Accepted Answer

Dobutamine

Answer

Dobutamine is a positive inotrope that increases cardiac output and improves perfusion pressure in anesthetized horses with inhalant-induced hypotension.

Question 5

A ferret presents for adrenalectomy. Which induction agent combination is most commonly used in ferrets for short procedures?

Accepted Answer

Ketamine and midazolam IM

Answer

Ketamine combined with midazolam (or diazepam) given IM is a practical and commonly used induction protocol in ferrets, providing smooth anesthesia.

NAVLE - North American Veterinary Licensing Examination Practice Test

NAVLE - North American Veterinary Licensing Examination Practice Test

NAVLE Veterinary Anesthesia and Pain Management 4