10 Random Questions
Compared with thiopental, methohexital is characterized by
- (A) better absorption after rectal administration
- (B) greater protein binding
- (C) greater hepatic clearance
- (D) larger volume of distribution
- (E) more complete biotransformation
A multiparous 24-year-old woman sustains an amniotic fluid embolism during general anesthesia. The LEAST likely clinical finding is
- (A) increased end-tidal carbon dioxide tension
- (B) increased uterine bleeding
- (C) jugular venous distention
- (D) ST and T wave abnormalities on ECG
- (E) wheezing
Which of the following statements concerning the metabolism of atracurium is true?
- (A) It is related to cardiac output
- (B) It is decreased by hyperthermia
- (C) It is unaffected by increasing age
- (D) It is decreased by low plasma cholinesterase activity
- (E) It is decreased in renal failure
An oxygen-driven anesthesia ventilator with a bellows that ascends during exhalation develops a small hole in the bellows. Which of the following is the most likely effect?
- (A) Alveolar hyperinflation
- (B) Decreased inspiratory flow rate
- (C) Decreased inspired oxygen concentration
- (D) Increased concentration of inhalational agent
- (E) Rebreathing of exhaled gases
Phase II neuromuscular block is characterized by
- (A) depressed twitch height, sustained tetanus, post-tetanic potentiation
- (B) depressed twitch height, tetanic fade, post-tetanic potentiation
- (C) depressed twitch height, tetanic fade, no post-tetanic potentiation
- (D) normal twitch height, tetanic fade, post-tetanic potentiation
- (E) normal twitch height, tetanic fade, no post-tetanic potentiation
Which of the following shaded areas most accurately represents the dead space of a properly functioning circle system?
A 65-year-old patient receiving long-term clonidine therapy fails to take it one day before surgery. This would most likely
- (A) be beneficial, since clonidine decreases cardiac output
- (B) be of no consequence due to the long half-life of clonidine
- (C) produce a lower anesthetic requirement than if the drug had been continued
- (D) produce rebound hypertension
- (E) result in seizure activity
Which of the following factors will slow the induction of anesthesia in patients receiving volatile anesthetics?
- (A) Addition of 70% nitrous oxide
- (B) Increased cardiac output
- (C) Increased minute ventilation
- (D) Low blood/gas solubility coefficient
- (E) Previous pneumonectomy
A patient has tonic movements of the head and neck, nystagmus, and slurred speech after receiving metoclopramide for nausea after nitrous oxide-opioid anesthesia. The most appropriate pharmacologic treatment is
- (A) diphenhydramine
- (B) midazolam
- (C) naloxone
- (D) phenytoin
- (E) physostigmine
The most likely cause of this capnographic tracing obtained just after laryngoscopy and intubation is
- (A) esophageal intubation
- (B) partial obstruction of the endotracheal tube
- (C) pulmonary embolus
- (D) insertion of an endotracheal nasogastric tube
- (E) mild bronchospasm