Anesthesia and Surgical Principles Flashcards
7 cards from real DVM practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Anesthesia and Surgical Principles flashcards as text
Which technique is preferred to prevent regurgitation and aspiration in brachycephalic dogs during anesthetic induction?
Answer: Pre-oxygenation followed by rapid sequence induction and immediate intubation
Rapid sequence induction with pre-oxygenation minimizes the time the airway is unprotected, reducing aspiration risk in brachycephalic dogs prone to regurgitation.
In small animal surgery, the correct classification of a surgical wound in which the GI tract was entered electively without contamination is:
Answer: Clean-contaminated
A clean-contaminated wound is one where a hollow viscus (GI, respiratory, urogenital) is entered under controlled conditions without significant spillage.
A cat undergoing anesthesia has a SpO2 of 92% on room air pre-induction. This corresponds to an approximate PaO2 of:
Answer: 65 mmHg
Based on the oxyhemoglobin dissociation curve, SpO2 of 92% corresponds to a PaO2 of approximately 65 mmHg, indicating mild hypoxemia.
Which of the following is the mechanism by which succinylcholine causes neuromuscular blockade?
Answer: Persistent depolarization of the motor end plate, preventing repolarization
Succinylcholine mimics acetylcholine but resists hydrolysis, causing sustained end-plate depolarization that renders the muscle unresponsive to further stimulation.
Wound closure by second intention (healing by granulation) is most appropriate for which of the following scenarios in a dog?
Answer: A heavily contaminated degloving injury of the distal limb
Heavily contaminated wounds with significant tissue loss are best managed by open wound care and second-intention healing to avoid sealing infection under a primary closure.
A sheep undergoes anesthesia for 90 minutes in dorsal recumbency. At recovery, it is ataxic and reluctant to rise. The most likely complication is:
Answer: Bloat and regurgitation during anesthesia
Ruminants in dorsal recumbency rapidly accumulate gas in the rumen because eructation is impossible, leading to bloat that can impair ventilation and cardiovascular function.
Which nerve block, performed at the infraorbital foramen, provides analgesia for maxillary dental procedures in dogs?
Answer: Infraorbital nerve block
Blocking the infraorbital nerve at the foramen desensitizes the ipsilateral upper premolars, canine, incisors, and adjacent soft tissues for maxillary dental procedures.