inhalant - my q's

Question 1

effects

Answer 1

• produce GA with predictable, adjustable depth

- anaesthetic gas reaches blood depending on: difference in drug partial pressure & drug fat solubility

Question 2

MAC = minimum alveolar concentration

Answer 2

• defined as the minimum alveolar partial pressure of an anaesthetic gas which prevents gross purposeful movements to surgical stimuli
• depends on the potency and gas PC
• IMPORTANT*
• the smaller the drug MAC, the higher the drug potency
• the higher the drug PC (the more soluble) the lower the drug MAC

Question 3

inhalants

Answer 3

• halothane: least soluble
• isoflurane: 2nd least soluble
• sevoflurane: 3rd least soluble
• desflurane: most insoluble

side effects
- cardiovascular depressiom (decreased cardiac output due to decreased contractility)
- resp depression
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