DVM Anesthesia and Pain Management 4

Question 1

Which inhalant anesthetic agent has the LOWEST blood-gas partition coefficient among those currently used in veterinary medicine?

Accepted Answer

Desflurane

Answer

Desflurane has the lowest blood-gas partition coefficient (0.42), resulting in the fastest induction and recovery, though it is rarely used in veterinary practice.

Question 2

A goat is anesthetized for rumenotomy. Which unique physiologic concern requires special positioning and management?

Accepted Answer

Regurgitation and aspiration due to forestomach contents

Answer

Ruminants are highly prone to regurgitation and passive reflux under anesthesia; head elevation and rapid intubation with a cuffed tube are essential to prevent aspiration.

Question 3

Which analgesic modality is MOST appropriate for managing chronic osteoarthritis pain in a senior dog with concurrent renal insufficiency?

Accepted Answer

Gabapentin as an adjunct analgesic

Answer

Gabapentin is renally excreted but is generally safer than NSAIDs in patients with renal insufficiency; NSAIDs reduce renal prostaglandins and can worsen renal function.

Question 4

During an isoflurane anesthetic in a cat, the vaporizer dial reads 2.5% but the EtCO2 is 60 mmHg. What is the MOST appropriate immediate intervention?

Accepted Answer

Manually ventilate or increase ventilator rate to correct hypoventilation

Answer

EtCO2 of 60 mmHg indicates hypoventilation; the correct response is to assist or control ventilation to normalize CO2, not to change anesthetic depth.

Question 5

What is the PRIMARY reason acepromazine is contraindicated as the sole sedative in a dog with suspected pheochromocytoma?

Accepted Answer

It blocks alpha-1 receptors, causing vasodilation that unmasks catecholamine hypertension

Answer

Acepromazine's alpha-1 blockade can precipitate a hypertensive crisis in pheochromocytoma patients by unmasking the unopposed beta-adrenergic effects of catecholamine surges.

DVM - Doctor of Veterinary Medicine Practice Test

DVM - Doctor of Veterinary Medicine Practice Test

DVM Anesthesia and Pain Management 4