VTNE Anesthesia Management 4

Question 1

A rabbit is being anesthetized and develops respiratory arrest. What anatomical feature makes rabbits particularly prone to apnea under anesthesia?

Accepted Answer

Obligate nasal breathing and a narrow glottis

Answer

Rabbits are obligate nasal breathers with a narrow glottis and strong laryngospasm reflex, making airway management and intubation challenging and apnea more common.

Question 2

Which reversal agent is used to antagonize the effects of medetomidine in dogs?

Accepted Answer

Atipamezole

Answer

Atipamezole is a selective alpha-2 adrenergic antagonist used to reverse the sedative and cardiovascular effects of medetomidine and dexmedetomidine.

Question 3

What does a PaO2 of 60 mmHg indicate in a patient breathing 100% oxygen?

Accepted Answer

Severe respiratory impairment

Answer

A PaO2 of 60 mmHg while breathing 100% oxygen indicates severe pulmonary dysfunction, as a normal patient should achieve PaO2 values of 450–600 mmHg.

Question 4

Which of the following best describes the role of a vaporizer in an anesthetic machine?

Accepted Answer

It converts liquid anesthetic agent into a precise vapor concentration for delivery

Answer

The vaporizer converts liquid inhalant anesthetic into a calibrated vapor concentration delivered to the patient via the breathing circuit.

Question 5

In a cat with hypertrophic cardiomyopathy (HCM), which anesthetic protocol component should be AVOIDED?

Accepted Answer

Tachycardia-inducing agents

Answer

Tachycardia reduces diastolic filling time in HCM patients, worsening obstruction and cardiac output; agents like ketamine or anticholinergics should be avoided.

VTNE - Veterinary Technician National Examination Practice Test

VTNE - Veterinary Technician National Examination Practice Test

VTNE Anesthesia Management 4