Compared with a person of normal weight, which of the following findings are most likely on pulmonary function testing of a patient with morbid obesity? (FVC, FEV/FVC, FRC, A-a DO2)?
An axillary block is administered to a 60-kg patient using 40 ml of 0.5% bupivacaine. Ten minutes after placement of the block, the patient has a seizure. Which of the following statements is true?
(A) A low serum albumin concentration could have contributed to the occurrence of the seizure
(B) CNS hypoperfusion is the most likely cause of the seizure
(C) The seizure was probably secondary to an allergic reaction to the local anesthetic
(D) The use of an equipotent dose of lidocaine rather than bupivacaine would have decreased the likelihood of
Which of the following complications is more likely to occur during cannulation of the left internal jugular vein than during cannulation of the right internal jugular vein?
Five hours after intramuscular administration of morphine 15 mg to a healthy 80-kg man, residual effects are best demonstrated by measuring the
(A) resting tidal volume
(B) resting PaC02
(C) functional residual capacity
(D) ventilatory response to rebreathing
(E) alveolar ventilation
D
Which of the following findings necessitates the preoperative insertion of a ventricular pacemaker in a 48-year-old man scheduled to undergo cholecystectomy?
(A) Atrial flutter with 3:1 atrioventricular block
(B) Bifascicular (right bundle branch block and left anterior hemiblock) block
(C) Left bundle branch block with first-degree atrioventricular block
A patient is scheduled for amputation of the third metatarsal. A tourniquet will not be used during the procedure. The most effective anesthesia will be provided by block of which of the following nerves?