Deck 11: General Anesthetics

Question 1

Ideally,a general anesthetic should produce all of the following properties EXCEPT:

A)loss of consciousness and sensation.
B)amnesia (i.e. ,no recollection of what occurred during the surgery).
C)slow onset of anesthesia.
D)inhibition of sensory and autonomic reflexes.
E)a minimum of toxic side effects (i.e. ,is relatively safe).

Answer 1

slow onset of anesthesia.

Question 2

When injected intravenously,general anesthetics offer the advantage of _______,but have a primary disadvantage of _____.

A)rapid onset of anesthesia;a relative lack of control over the level of anesthesia
B)rapid onset of anesthesia;excessive first-pass metabolism
C)relatively good control over the level of anesthesia;rapid onset of anesthesia
D)relatively good control over the level of anesthesia;excessive first-pass metabolism
E)relatively good control over the level of anesthesia;slow onset of anesthesia

Answer 2

rapid onset of anesthesia;a relative lack of control over the level of anesthesia

Question 3

Which of the following general anesthetics is typically administered by inhalation?

A)Barbiturate drugs such as thiopental,thiamylal
B)Volatile liquids such as desflurane,enflurane
C)Benzodiazepines such as diazepam,lorazepam,and midazolam
D)Opioid analgesics such as fentanyl,morphine,and meperidine
E)Ketamine

Answer 3

Volatile liquids such as desflurane,enflurane

Question 4

When general anesthetics are administered via the inhalation route,a major advantage is they:

A)take effect slowly.
B)take effect rapidly.
C)permit better control over the level of anesthesia.
D)allow the patient to spend more time in Stage I of anesthesia.
E)allow the patient to spend more time in Stage II of anesthesia.

Question 5

During many surgeries,a skeletal neuromuscular junction blocker is given in conjunction with the general anesthetic so that:

A)a lower dose of anesthetic can be used while still ensuring skeletal muscle paralysis.
B)the patient can be positioned easily on the operating table.
C)the thoracic wall is more compliant and does not offer as much resistance to mechanical ventilation.
D)all of the above
E)none of the above;skeletal neuromuscular junction blockers are never given in conjunction with general anesthetics.

Question 6

Adipose tissue is a primary site for the absorption and temporary accumulation of general anesthetics because:

A)adipose tissues are highly perfused by the bloodstream.
B)general anesthetics are very water soluble.
C)general anesthetics are very lipid soluble.
D)adipose tissue is the primary site where general anesthetics are metabolized.
E)none of the above;general anesthetics are not absorbed by adipose tissue.