10 Random Questions
Each of the following is a complication of stellate ganglion block EXCEPT
- (A) brachial plexus block
- (B) diplopia
- (C) local anesthetic-induced seizure
- (D) recurrent laryngeal nerve palsy
- (E) subarachnoid block
Appropriate anesthetic management of a patient with hypertrophic cardiomyopathy includes each of the following EXCEPT
- (A) maintaining normal or slightly greater than normal preload
- (B) adjusting positive airway pressure to maintain near normal venous return
- (C) preference for volatile agents rather than opiates for anesthesia
- (D) use of beta-adrenergic blocking agents to increase ventricular wall compliance
- (E) decreasing afterload with peripheral vasodilators
In the event of a leak in the air flowmeter, which flowmeter arrangement produces the lowest risk of delivering hypoxic gas mixtures?
- (A) Air, O2, N2O
- (B) N2O, O2, Air
- (C) N2O, Air, O2
- (D) O2, Air, N2O
- (E) O2, N2O, Air
Each of the following is an effect of rapid infusion of mannitol EXCEPT
- (A) depletion of electrolytes
- (B) impaired platelet adhesiveness
- (C) increased intracranial pressure
- (D) increased intravascular fluid volume
- (E) increased renal blood flow
A 65-kg 70-year-old man in the PACU is breathing spontaneously at 20/min through an endotracheal tube connected to a T-piece with a fresh gas flow of 5 L/min. He has a tidal volume of 350 mL and an FiO2 of 0.5. SpO2 decreases from 98% to 84% over one hour, then improves to 92% with an FiO2 of 1.0. Which of the following is the most likely cause of the hypoxemia?
- (A) Decreased functional residual capacity
- (B) Increased dead space ventilation
- (C) Inhibition of hypoxic pulmonary vasoconstriction
- (D) Room air admixture during inspiration
- (E) Shivering
Preoperative administration of alpha-adrenergic inhibitors will usually reverse ECG changes due to
- (A) catecholamine myocarditis
- (B) Preoperative administration of alpha-adrenergic inhibitors decreases operative mortality
- (C) Beta-adrenergic inhibitors should be administered preoperatively only in conjunction with alpha-adrenergic
- inhibitors
- (D) Vasopressor therapy may be necessary postoperatively for treatment of hypotension
A sensory level of T2 is achieved after administration of spinal anesthesia. Which of the following lung volumes is LEAST likely to be affected?
- (A) Expiratory reserve volume
- (B) Inspiratory reserve volume
- (C) Inspiratory capacity
- (D) Tidal volume
- (E) Vital capacity
A 50-year-old woman has episodes of electric-shock-like pain of one minute in duration affecting the right side of the face. In between episodes of this pain, she is relatively pain free. Which of the following is the most appropriate management?
- (A) Beta-adrenergic blockers
- (B) Carbamazepine
- (C) Infrared heat therapy
- (D) Nonsteroidal anti-inflammatory drugs
- (E) Stellate ganglion block
A 75-year-old, 60-kg man with moderately disabling heart failure secondary to ischemic heart disease is undergoing a transurethral prostatic resection under halothane-nitrous oxide anesthesia. Resection time is 30 minutes, and fluid replacement has been lactated Ringer's solution 500 mL. Although heart rate is unchanged, the arterial pressure monitor used because of his cardiac condition has changed from A to B over the last 15 minutes. The most appropriate management is to
- (A) discontinue halothane
- (B) adminster ephedrine 10 mg intravenously
- (C) administer digoxin one half of his daily dose intravenously
- (D) administer sodium chloride 100 mL of 3%
- (E) do none of the above
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