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19 Cards in this Set
- Front
- Back
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What are some IV drugs used in general anesthesia?
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Propofol
Thiopental Etomidate Ketamine |
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Which types of general anesthetics are more reliably cleared from the body?
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Inhalational
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Which types of general anesthetics are generally preferred for lengthy operations?
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Inhalational
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What are some Inhaled drugs used in general anesthesia?
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Enflurane
Halothane Isoflurane Nitrous Oxide Methoxyflurane Sevoflurane |
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What is the minimum alveolar concentration (MAC)?
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The alveolar anesthetic concentration at one atmosphere (760mmHg) that prevents movement of 50% of patients exposed to noxious stimuli.
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The speed of onset of anesthesia is inversely related to the _______ of the gas in blood.
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solubility
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What is the common anesthetic mechanism of action for barbiturates, propofol, and benzodiazepines?
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Enhance the action of GABA (inhibitory neurotransmitter)
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_________ must be given before inhalation to avoid the excitement stage (II) of general anesthesia.
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Sodium Pentothal
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IV general anesthetics must be ________ for administration.
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lipid soluble
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Which types of general anesthetics have a more rapid onset of action?
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IV
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Which general anesthetic is considered an NMDA receptor antagonist?
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Ketamine
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Narcotics interact with ______ receptors to induce anesthesia.
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opioid
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Which inhaled anesthetic is associated with a reduction in glomerular filtration rate (GFR)?
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Halothane (flurothane)
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What are the advantages of using halothane (flurothane) in general anesthesia?
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Nonflammable
Provides controlled hypotension to manage bleeding |
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What are some adverse effects of halothane (flurothane)?
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Hepatitis
Significant myocardial depression |
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Halothane (flurothane) is mostly used as a general anesthetic for which types of patients?
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Pediatric patients
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Abrupt discontinuation of which inhaled analgesic results in diffusional hypoxia?
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Nitrous Oxide
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What are some advantages of Nitrous oxide?
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Excellent analgesia
Nonflammable Very rapid onset and recovery |
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What are some disadvantages of Nitrous Oxide?
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No skeletal muscle relaxation
Weak anesthetic Diffusion Hypoxia Not suitable as sole agent |
