10 Random Questions
A patient has hoarseness after undergoing surgery involving the aortic arch. The most likely cause is an injury to which of the following nerves?
- (A) Glossopharyngeal
- (B) Left recurrent laryngeal
- (C) Right recurrent laryngeal
- (D) Left superior laryngeal
- (E) Right superior laryngeal
Which of the following is the most likely cause of rapid oxygen desaturation during laryngoscopy In a pregnant woman?
- (A) Airway edema
- (B) Anemia
- (C) Decreased functional residual capacity
- (D) Fetal oxygen consumption
- (E) Increased cardiac output
A normotensive 66-year-old man undergoes total hip arthroplasty. Mean arterial pressure is maintained at 60 mmHg with isoflurane and labetalol; intraoperative FiO2 is 1.0. Eight units of red blood cells are administered intraoperatively because of an injury to the femoral artery. Five days later, the patient develops jaundice. Which of the following is the most likely cause of the jaundice?
- (A) Delayed hemolysis from transfusion
- (B) Heart failure with hepatic congestion
- (C) Hepatocellular injury from labetalol
- (D) Intraoperative hypotension
- (E) Isoflurane-associated hepatitis
Each of the following statements concerning norepinephrine is true EXCEPT:
- (A) Extraneuronal uptake is important in the termination of its activity
- (B) It is formed from dopamine
- (C) Its release is facilitated by ephedrine
- (D) Its uptake is affected by cocaine
- (E) It has minimal beta2-adrenergic activity
An intubated patient is breathing spontaneously through the T-piece shown in Figure 1. Addition of tubing at A and B as shown in Figure 2 without an increase in minute ventilation will result in
- (A) unchanged FiO2 and increased PaCO2
- (B) unchanged FiO2 and unchanged PaCO2
- (C) increased FiO2 and increased PaCO2
- (D) increased FiO2 and unchanged PaCO2
- (E) decreased FiO2 and increased PaCO2
In a patient with chronic congestive heart failure, the safest pharmacologic approach to brain swelling during a craniotomy is
- (A) dexamethasone
- (B) furosemide
- (C) mannitol
- (D) thiopental
- (E) urea
An otherwise healthy 70-year-old man receives 12 units of packed red blood cells for persistent diffuse bleeding during suprapubic prostatectomy. Hemoglobin concentration is 11 g/dL, platelet count is 55,000/mm3, plasma fibrinogen concentration is 180 mg/dL, protime is 14 sec, and partial thromboplastin time is 35 sec. The most appropriate therapy is administration of
- (A) cryoprecipitate
- (B) desmopressin (DDAVP)
- (C) epsilon-aminocaproic acid
- (D) fresh frozen plasma
- (E) platelets
A middle-aged, 70-kg man with a brain tumor is scheduled for an elective craniotomy. Preoperatively, he is alert but papilledema is present. Anesthesia is induced with thiopental 300 mg and succinylcholine 100 mg, followed by tracheal intubation. Immediately following intubation vigorous bucking occurs. The best immediate management would be to
- (A) administer succinylcholine 100 mg intravenously
- (B) administer fentanyl 500 jug intravenously
- (C) hyperventilate with isoflurane 2%
- (D) administer thiopental 400 mg intravenously
- (E) hyperventilate and administer lidocaine 1 mg/kg intravenously
A patient who is scheduled for a gastrectomy had abnormal liver function tests for four days following a prior cholecystectomy. In your consultation note, you should
- (A) recommend sevoflurane anesthesia since abnormal postoperative liver function tests are unlikely with this drug
- (B) recommend subarachnoid anesthesia since changes in hepatic blood flow would be less than with general anesthesia
- (C) indicate that abnormal liver function tests are likely to follow this operation regardless of the anesthetic drugs used
- (D) require preoperative screening for hepatitis B antigen and antibodies
- (E) recommend avoiding halothane since it is more likely to produce hepatitis in patients who had previous upper abdominal surgery
Assignment of a patient to an ASA physical status category is used to
- (A) facilitate comparisons among different patient groups and institutions
- (B) guide the choice of anesthetic technique
- (C) permit accurate determination of charges for professional services
- (D) predict anesthetic risk
- (E) predict perioperative mortality