The plasma concentration of equal doses of a local anesthetic is highest when the site of administration is
Each of the following increases arterial to end-tidal carbon dioxide tension difference EXCEPT
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?
During a cardiac arrest with effective chest compression and positive-pressure ventilation, 50 mEq of sodium bicarbonate is administered. Which of the following is the most likely result?
A 20-kg, 6-year-old boy is undergoing strabismus surgery under anesthesia with sevoflurane, nitrous oxide, and oxygen. The heart rate suddenly decreases from 85 to 40 bpm. Which of the following is the most appropriate first step in management?
Each of the following would be expected in an otherwise healthy 165-kg woman undergoing cholecystectomy EXCEPT
The best indication that a patient is ready for discharge from an outpatient facility after spinal anesthesia is return of
An 87-kg 64-year-old woman in good general health is undergoing a right knee arthroplasty while in the supine position with general anesthesia consisting of enflurane 2% and nitrous oxide 50% in oxygen. She is breathing spontaneously through a 7-mm endotracheal tube. During the first 30 minutes of the procedure, the arterial oxygen saturation measured by pulse oximetry decreases from 98% to 92%. The most likely cause of the desaturation is
A 70-kg, 47-year-old man is undergoing a repeat coronary artery bypass graft. Following sternotomy, administration of heparin 300 units/kg for anticoagulation increases the activated coagulation time from a baseline of 135 sec to 210 sec. This finding is compatible with
A 26-year-old man is in the ICU one hour after sustaining a displaced cervical fracture at the level of C7-8 in a diving accident. Each of the following findings is consistent with this patient's injury EXCEPT