If the low-pressure alarm of an anesthesia circuit is broken, which of the following monitors will provide the earliest indication of a disconnected ventilator hose?
Which of the following is most likely to decrease in the affected area following a paravertebral lumbar sympathetic block?
(A) Cutaneous blood flow
(B) Pinprick sensation
(C) Sweating
(D) Temperature sensation
(E) Venous capacitance
C
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
During transurethral resection of the prostate under spinal anesthesia with a sensory level to T10, a patient has sudden onset of sharp upper abdominal pain and nausea. Arterial blood pressure increases from 120/80 to 150/90 mmHg; the patient becomes diaphoretic. Which of the following is the most likely diagnosis?
Three hours after total thyroidectomy, a 33-year-old man develops inspiratory stridor. The most likely cause is
(A) hematoma formation
(B) tracheomalacia
(C) tetany
(D) recurrent laryngeal nerve injury
(E) superior laryngeal nerve injury
A
A 46-year-old man is scheduled for repair of an inguinal hernia. Six years ago, he had an episode of malignant hyperthermia during cholecystectomy. Which of the following is the most appropriate perioperative management?
(A) Administration of a regional anesthetic
(B) Administration of dantrolene orally for two days prior to surgery
(C) Avoidance of all inhalational anesthetics except isoflurane
(D) Avoidance of ester local anesthetics
(E) Flushing the anesthesia machine with oxygen 10 L/min for a minimum of 12 hours
During isoflurane anesthesia, a 45-year-old patient with chronic asthma has wheezing, prolonged expiration, sinus tachycardia of 120 bpm, and premature ventricular contractions. Preoperative medication included cromolyn and theophylline. The most appropriate treatment is to administer