10 Random Questions
Compared with epidural administration of hydrophilic opioids, epidural administration of lipophilic opioids is associated with
- (A) earlier onset of pruritus
- (B) greater motor block when combined with local anesthetics
- (C) higher incidence of delayed respiratory depression
- (D) lesser sensitivity to reversal of analgesia by naloxone
- (E) slower onset of analgesia
Which of the following statements concerning neuroleptic malignant syndrome is true?
- (A) It does not respond to dantrolene therapy
- (B) It is inherited as an autosomal trait
- (C) It is not triggered by succinylcholine
- (D) It occurs after long-term use of L-dopa
- (E) The halothane-caffeine contracture test is negative in susceptible patients
A 64-year-old man is scheduled to have an elective right colon resection under nitrous oxide, oxygen, enflurane anesthesia. Following a myocardial infarction two years ago, a programmable VVI pacemaker was inserted for complete heart block. A pre induction rhythm strip is shown. Based on this EKG finding, the most appropriate action is to
- (A) proceed with induction of anesthesia
- (B) convert the pacemaker to the fixed rate mode
- (C) reprogram the pacemaker to increase R-wave sensitivity
- (D) increase the pacemaker current outpu
- (E) insert a temporary atrioventricular sequential pacemaker
The most likely explanation for the intraoperative capnographic tracing shown is
- (A) cardiac oscillation
- (B) exhaustion of soda lime
- (C) kinking of the endotracheal tube
- (D) partial recovery from vecuronium
- (E) presence of water droplets in the analyzer
Perception of pain from cutaneous sources involves each of the following EXCEPT
- (A) frontal lobe gyri
- (B) lateral spinothalamic tracts
- (C) periaqueductal gray matter
- (D) spinal dorsal horn lamina V
- (E) unmyelinated C fibers
During Harrington rod instrumentation for scoliosis, monitoring somatosensory evoked potentials
- (A) is unreliable if halothane is used
- (B) eliminates the need for a wake-up test
- (C) accurately assesses proprioceptive integrity
- (D) accurately assesses motor function integrity
- (E) is unreliable if nondepolarizing muscle relaxants are used
Which of the following increases blood flow to the lower lobe of the right lung?
- (A) Collapsing the right lung during anesthesia
- (B) The expiratory phase of spontaneous ventilation
- (C) The inspiratory phase of mechanical ventilation
- (D) Moving from the supine to the upright position
- (E) Moving from the supine to the left lateral decubitus position
The anesthetic concentration necessary to suppress responses to intubation without muscle relaxation is
- (A) Increased in pregnancy
- (B) increased by premedication with scopolamine
- (C) higher than the concentration required for skin incision
- (D) lower at high altitudes than at low altitudes
- (E) the same as that required for electrocautery of gut
Which of the following findings is most likely in patients receiving intravenous milrinone?
- (A) Decreased left ventricular afterload
- (B) Decreased myocardial oxygen consumption
- (C) Increased atrioventricular conduction
- (D) Increased right ventricular preload
- (E) Stimulation of beta-adrenergic receptors
Which of the following muscle relaxants in an ED95 dose would have the longest duration of action in a patient with renal failure?
- (A) Atracurium
- (B) Metocurine
- (C) Pancuronium
- (D) d-Tubocurarine
- (E) Vecuronium