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14 Cards in this Set
- Front
- Back
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What are the characteristics of a general anesthetic?
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reversible CNS depression
unconsciousness amnesia analgesia muscle relaxation immobility |
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What are the stages of anesthesia?
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I- voluntary movement
II- delirium, involuntary movement III- surgical anesthesia IV- extreme depression, respiration ceases |
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What level of anesthesia do you want to be at for procedures?
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stage III
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What are the inhalant anesthetics used today?
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Isofluorane
Sevofluorane |
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How does respiratory rate affect anesthesia with inhalant anesthetics?
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animal must be breathing well to become anesthetized (need blood/gas exhange)
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What is the blood/gas partition coefficient and what does it mean?
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measure of how much anesthetic is in the blood vs tissues
A low coefficient means rapid induction and recovery (doesn't want to stay in the blood) |
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Which inhalant anesthetic has the lower blood/gas partition coefficient?
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sevofluorane has a lower coefficient than isofluorane
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How are inhalant anesthetics removed from circulation?
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expiration
(little metabolism, not important mechanism) |
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What is minimum alveolar concentration?
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lowest concentration of the anesthetic in the alveoli that will produce sedation
*same as ED50 |
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Which inhalant anesthetic has the lower MAC?
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isofluorane has a lower MAC (more potent) than sevofluorane
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What is the MOA of inhalant anesthetics?
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unknown, thought to interact with lipid membranes of neurons
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What are the systemic effects of isofluorane?
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CNS depression
Respiratory depression Can cause arrhythmia |
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What are the systemic effects of sevofluorane?
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CNS depression
respiratory depression minor cardiovascular effects produces compound A when combined with soda lime, may be nephrotoxic (not proven) |
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What are the hazards of occupational exposure to inhalant anesthetics?
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may cause miscarriage or abortion if exposed to high levels (>8hrs/week)
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