10 Random Questions
A patient receiving monoamine oxidase inhibitor therapy for depression undergoes an emergency cholecystectomy. Which of the following is the best means of providing postoperative analgesia in this patient?
- (A) Epidural analgesia using 0.25% bupivacaine
- (B) Intravenous meperidine
- (C) Epidural analgesia using meperidine
- (D) Epidural analgesia using 1% lidocaine with epinephrine
- (E) Intercostal analgesia using 1% lidocaine with epinephrine
Each of the following is an effect of intravascular radiographic contrast media EXCEPT
- (A) altered protein binding of anesthetic drugs
- (B) bronchospasm
- (C) increased systemic vascular resistance
- (D) pulmonary edema
- (E) seizures
Alveolar and inspired anesthetic concentrations equilibrate more rapidly with nitrous oxide than with desflurane because nitrous oxide
- (A) has a higher vapor pressure
- (B) has a lower blood gas solubility
- (C) has a lower MAC
- (D) is delivered at a higher inspired concentration
- (E) produces a second gas effect
The cardiac rhythm illustrated appeared suddenly in an anesthetized patient. The most appropriate management is
- (A) administration of adenosine
- (B) administration of digoxin
- (C) administration of epinepherine
- (D) overdrive pacing
- (E) synchronous cardioversion
Compared with other volatile inhalation anesthetics, desflurane has which of the following characteristics?
- (A) Equipotency to isoflurane
- (B) Greater extent of biotransformation than enflurane
- (C) Less airway irritation than halothane
- (D) Lower blood gas solubility coefficient than enflurane
- (E) Lower vapor pressure than isoflurane
Intractable pain due to unresectable pancreatic carcinoma is most effectively treated with
- (A) bilateral neurolytic intercostal blocks at T10-12
- (B) bilateral sympathetic blocks with phenol
- (C) celiac plexus block with alcohol
- (D) epidural block with phenol
- (E) subarachnoid block with alcohol
A 157 cm (5 ft 2 in), 180-kg, 40-year-old woman has a PaO2 of 65 mmHg, a PaCO2 of 38 mmHg, and a pH of 7.43 while breathing room air preoperatively. The most likely cause of these values is
- (A) decreased hypoxic ventilatory drive
- (B) higher than normal oxygen extraction from blood
- (C) lower than normal cardiac output
- (D) lower than normal functional residual capacity
- (E) polycythemia
A patient has decreased lung compliance and hypoxemia after a 30-minute episode of laryngospasm following extubation. The most likely cause is
- (A) allergic reaction to the anesthetic
- (B) altered alveolar-capillary membrane permeability
- (C) anesthetic-induced lymphatic dysfunction
- (D) increased pulmonary capillary pressure
- (E) negative pulmonary interstitial hydrostatic pressure
Which of the following is characteristic of the pharmacokinetics of alfentanil?
- (A) Clearance is greater than that of fentanyl
- (B) Elimination half-life is normal in patients with hepatic insufficiency
- (C) Protein binding is minimal
- (D) The majority of alfentanil in plasma is ionized
- (E) Volume of distribution is smaller than that of fentanyl
A single dose of etomidate for induction of anesthesia will cause
- (A) adrenal cortical suppression
- (B) decreased skeletal muscle tone
- (C) hypotension
- (D) increased airway reactivity
- (E) tachycardia