10 Random Questions
Preoperative evaluation of a patient who has marked malnutrition will demonstrate each of the following EXCEPT
- (A) decreased respiratory muscle function
- (B) decreased serum albumin concentration
- (C) decreased metabolic rate
- (D) suppressed immune function
- (E) decreased extracellular fluid volume
Each of the following would be expected after preoperative oral administration of clonidine EXCEPT
- (A) bradycardia in the absence of surgical stimulation
- (B) decreased requirement for inhalational anesthetics
- (C) decreased requirement for opioid anesthetics
- (D) decreased response to exogenous epinephrine
- (E) sedation
Each of the following is associated with an increased alveolar-arterial oxygen tension difference EXCEPT
- (A) advanced age
- (B) atelectasis
- (C) decreased cardiac output
- (D) decreased Fl02
- (E) right-to-left intracardiac shunt
A 40-year-old woman with chronic renal failure is undergoing revision of an arteriovenous shunt with general anesthesia. The capnographic waveform was obtained during spontaneous ventilation 20 minutes after administration of succinylcholine and tracheal intubation. Which of the following is the most likely cause of these findings?
- (A) Leaking endotracheal cuff
- (B) Channeling of soda lime
- (C) Light anesthesia
- (D) Metabolic acidosis
- (E) Residual neuromuscular block
Compared with adults, neonates are more likely to become hypoxemic following anesthesia and extubation because of a relatively
- (A) higher rate of oxygen consumption
- (B) greater sensitivity to neuromuscular blockade
- (C) larger Vd/Vt ratio
- (D) lower blood pressure
- (E) smaller functional residual capacity
A 70-year-old man with mild hypertension and aortoiliac occlusive disease is undergoing aortofemoral bypass grafting. Which of the following interventions is most effective in maintaining renal perfusion during infrarenal aortic clamping?
- (A) Infusion of dopamine at 2 mcg/kg/min
- (B) Infusion of sodium nitroprusside
- (C) Intravenous administration of furosemide
- (D) Intravenous administration of mannitol
- (E) Volume loading with crystalloid
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
Which of the following postoperative treatments decreases the risk for deep venous thrombosis?
- (A) Blood transfusion
- (B) Epidural anesthesia
- (C) Etomidate
- (D) Ketorolac
- (E) Patient-controlled analgesia
Which of the following must be considered during perioperative management of a patient on long-term lithium therapy?
- (A) Intravenous fluids should include sodium
- (B) Therapy should be discontinued for 14 days prior to anesthesia
- (C) The requirement for succinylcholine is increased
- (D) The requirement for volatile anesthetics is increased
- (E) Urine output should be maintained with furosemide
A 60-year-old man undergoes transurethral resection of a bladder tumor in the lithotomy position with spinal anesthesia. During the procedure the surgeon reports that the patient's right leg is "jumping." This movement is most likely caused by stimulation of which of the following nerves?
- (A) Femoral
- (B) Lateral femoral cutaneous
- (C) Obturator
- (D) Pudendal
- (E) Sciatic