Canine and Feline Anesthesia Vocabulary

Vocabulary practice flashcards covering canine and feline anesthesia procedures, equipment, protocols, and maintenance guidelines.

Neuroleptanalgesia

A state of CNS depression and analgesia produced by the combined administration of a tranquilizer or sedative and an opioid, typically used for short and minor procedures.

Mask Induction

An induction technique delivering inhalant anesthetic (e.g., Isoflurane or Sevoflurane) via a face mask, which can cause patient struggling, epinephrine release, and increased mechanical dead space.

Chamber Induction

An anesthetic induction method using an enclosed transparent container for small or aggressive animals; it lacks waste gas scavenging and results in rapid arousal if intubation is not performed immediately.

Total Intravenous Anesthesia (TIVA)

A technique for maintaining general anesthesia through repeated intravenous bolus injections of short-acting agents (such as propofol, etomidate, or alfaxolone) every $3 - 8\,\text{minutes}$.

Constant Rate Infusion (CRI)

A variant of TIVA where an automated delivery device continuously administers a regulated flow of intravenous anesthetic to maintain a uniform depth of anesthesia.

Murphy Tube

The most common endotracheal tube design in small animal practice, featuring a beveled end, an inflatable cuff, and a side opening called a Murphy eye.

Magill Tube

An endotracheal tube similar in design to a Murphy tube but constructed without a side opening (Murphy eye).

Cole Tube

An uncuffed endotracheal tube with a tapered distal end that creates "shoulders" to seal against the laryngeal opening, designed for use in birds, reptiles, and pediatric patients.

Murphy Eye

A side hole located near the tip of a Murphy endotracheal tube that provides a secondary air passage if the primary bevel opening becomes obstructed.

Laryngoscope

An instrument with a light source and a blade (e.g., Miller or Macintosh) used to depress the tongue and epiglottis for visual guidance during endotracheal intubation.

Laryngospasm

Reflexive closure of the laryngeal cartilages upon mechanical stimulation, commonly encountered in feline patients during intubation or extubation.

Supraglottic Airway Device (SGAD)

An alternative airway management device that sits above the glottis rather than entering the trachea, reducing airway trauma and anatomical dead space.

Isoflurane Maintenance Concentration

The standard maintenance percentage range of $1.5\% - 2.5\%$ for canine and feline patients receiving Isoflurane inhalant anesthesia.

Sevoflurane Maintenance Concentration

The standard maintenance percentage range of $2.5\% - 4\%$ for canine and feline patients receiving Sevoflurane inhalant anesthesia.

Hypostatic Congestion

The pooling of blood in the lower (dependent) lung during recumbency, prevented during recovery by turning the patient every $15\,\text{minutes}$.

Swallow Reflex

The return of voluntary swallowing movement in an arousal-stage patient, recognized as the most reliable indicator for safe endotracheal extubation.