Deck 11: General Anesthetics

Question 1

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 1

volatile liquids such as desflurane, enflurane,

Question 2

Which of the following statements about general anesthesia is (are)true?

A) Certain general anesthetics such as propofol can be used to sedate patients in the intensive care unit who are mechanically ventilated
B) most modern anesthetics seems to act on CNS neurons by binding to a specific receptor on that neuron
C) IV and inhaled agents can be used in various combinations to provide "balanced anesthesia" throughout surgery.
D) all the above are true
E) none of the above are true

Answer 2

all the above are true

Question 3

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 the above are true
E) skeletal neuromuscular junction blockers are never given in conjunction with general anesthetics

Answer 3

all the above are true

Question 4

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 are true; general anesthetics are not absorbed by adipose tissue

Question 5

Place the stages listed below in the proper sequence that occurs as the dosage of general anesthesia increases. 1. medullary paralysis
2) surgical anesthesia
3) excitement (delirium)
4) analgesia without amnesia

A) 3, 4, 1, 2
B) 4, 3, 2, 1
C) 1, 3, 2, 4
D) 4, 3, 1, 2
E) 3, 4, 2, 1

Question 6

When general anesthetics are administered by 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 7

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., be relatively safe)

Question 8

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