10 Random Questions
A 45-year-old patient with chronic alcoholism develops jaundice four days after a cholecystectomy under halothane/morphine general anesthesia. Bilirubin and alkaline phosphatase are elevated, but ALT is only slightly above normal. All values were within normal limits preoperatively. The most likely cause of jaundice is
- (A) opioid-induced spasm of the sphincter of Oddi
- (B) hepatic dysfunction secondary to halothane exposure
- (C) worsening of underlying chronic hepatitis
- (D) extrahepatic biliary obstruction
- (E) acute viral hepatitis
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
In this diagram of a circle system, an increase in dead space is most likely to result from placement of the pressure relief valve at location
- (A) 1
- (B) 2
- (C) 3
- (D) 4
- (E) 5
A patient who is receiving ventilatory support after coronary artery bypass grafting has a PaO2 of 132 mmHg, a PaCO2 of 19 mmHg, and a pH of 7.57. Which of the following is most likely to result from this level of hypocarbia?
- (A) Decreased airway resistance
- (B) Increased myocardial contractility
- (C) Hyperkalemia
- (D) Shortened QT interval
- (E) Cerebral ischemia
Cerebral blood flow is decreased by each of the following EXCEPT
- (A) etomidate
- (B) midazolam
- (C) nitrous oxide
- (D) increased minute ventilation
- (E) positive end-expiratory pressure
Which of the lines shown in the graph illustrates the relationship of hematocrit and oxygen transport?
- (A) Line A
- (B) Line B
- (C) Line C
- (D) Line D
- (E) Line E
Metoclopramide acts to
- (A) block dopamine receptors
- (B) decrease gastric acid production
- (C) decrease lower esophageal sphincter tone
- (D) delay gastric emptying
- (E) facilitate central cholinergic stimulation
A 75-year-old man received an uneventful epidural anesthetic for total knee arthroplasty. Twenty-four hours later he has a painless flaccid paralysis in both legs. This clinical presentation is most consistent with
- (A) adhesive arachnoiditis
- (B) anterior spinal artery thrombosis
- (C) epidural abscess
- (D) epidural hematoma
- (E) transverse myelitis
A 50-year-old patient undergoes subtotal thyroidectomy for Graves' disease. In the immediate postoperative period, he has marked hoarseness but no stridor. The most likely cause of the hoarseness is trauma to the
- (A) external branch of the superior laryngeal nerve
- (B) internal branch of the superior laryngeal nerve
- (C) recurrent laryngeal nerve
- (D) glossopharyngeal nerve
- (E) vocal cords
Compared with general anesthesia, epidural anesthesia for hip arthroplasty is associated with
- (A) decreased incidence of perioperative myocardial ischemia
- (B) decreased intraoperative blood loss
- (C) decreased risk for acute renal failure
- (D) increased risk for stress-induced hyperglycemia
- (E) increased thromboembolic complications