Inhalational Agents Flashcards
True or False: Saturated vapor pressure is agent specific.
TRUE
True or False: Saturated vapor pressure is not temperature specific.
FALSE - SVP is temperature specific
True of False: Saturated vapor pressure is not altitude specific.
TRUE - unaffected by altitude
When temperature decreases, the SVP increases or decreases?
Decreases
True or False: Boiling point is unaffected by altitude.
FALSE
Does boiling point increase or decrease with altitude?
Decrease
What is the boiling point?
The temperature at which the saturated vapor pressure = atmospheric pressure
Which factor drives gas movement across tissues?
Partial pressure gradients
Gas movement stops when what is reached?
Equilibrium
Define equilibrium
Same partial pressure, NOT necessarily concentration
What is the affinity of a gas for adjacent tissue when at equilibrium?
Partition coefficient
Gases relatively insoluble in blood have a low or high blood/gas partition coefficient?
Low
Low partition coefficient = Low solubility in blood
Effect of solubility: if a gas is insoluble in the blood, would it cause slow or rapid equilibrium between the brain and alveoli?
Rapid
As for the rate of rise in the alveolar anesthetic concentration toward the inspired concentration, the rise is most rapid with the ____ soluble agent and slowest with the ____ soluble agent.
As for the rate of rise in the alveolar anesthetic concentration toward the inspired concentration, the rise is most rapid with the LEAST soluble agent and slowest with the MOST soluble agent.
High MAC = ____ potency
High MAC = LOW potency
