Quiz 2 (Injectable Anesthetics/Intubation) Flashcards
What is the purpose of injectable anesthetics?
Used for induction of general anesthesia in small and large animals
What is another purpose of injectable anesthetics?
May be used alone for short surgical or diagnostic procedures
Once injected how long are the effects of injectable anesthetics?
until the anesthetic is metabolized and excreted by the animal’s body
What is the concern with giving more than the anesthetic dose with injectable anesthetics?
may cause an increased amount of anesthetic with in the muscles leading to overdose amount
What are some examples of anesthetic drugs?
- Propofol
- Dissociative Anesthetics
- Alfaxalone
- Etomidate
- Guaifenesin
- Ultra-Short-Acting Barbiturates
Propofol characteristics (2)
- Relatively new ultra-short acting injectable anesthetic
2. Used for induction or as sole agent in short anesthetic procedures
What can propoflo be use in the treatment of?
status epilepticus
What are the effects of propoflo? (6)
- CNS depression
- Respiratory depression
- Cardiovascular depression
- Moderate muscle relaxation
- Poor analgesia
- Transient excitation
What kinds of transient excitation can propflo cause?
- paddling
- muscle twitching
- nystagmus
- rigid extension of neck and forelimb muscles
How often can propoflo be given?
repeatedly w/o adverse effects
What does propoflo contain that gives it poor storage characteristics?
soybean oil, egg lecithin, and glycerol
What does propoflo 28 contain to help extend its punctured shelf life?
benzyl alcohol
What can perivascular injection of propoflo cause?
Discomfort
What is the preferred induction agent for cesarean section?
propoflo
What is the administration technique for propoflo?
over 50 seconds
What is an example of dissociative anesthetics?
- ketamine
2. tiletamine
dissociative anestheia?
animal may seem awake but is unaware of its surroundings
What kind of state of mind do dissociative anesthetics induce?
catalepsy
Catalepsy
animal does not respond to external stimuli and exhibits muscle rigidity
What medical condition should you not use dissociative anesthetics with?
seizures
How do dissociative anesthetics work?
Instead of suppressing neurons in the CNS, it will stimulate certin neurons with in the CNS that lead to suppression of inhibitory neurons.
What are the effects of dissociative anesthetics? (7)
- Poor muscle relaxation
- Swallowing and laryngeal reflexes may persist throughout anesthesia
- May precipitate seizures
- Provide no visceral analgesia
- May produce apneustic respiration
- No cardiovascular system depression
- May increase salivary and respiratory secretions
What drug when given with dissociative anesthetics can promote muscle relaxation
benzodiazapines
Apneustic breathing pattern
Will breath in and hold breath for a few seconds