A 64-year-old man with diabetes mellitus well controlled with NPH insulin undergoes lower extremity revascularization. Following administration of protamine 10 mg, the patient has facial flushing and blood pressure of 60/30 mmHg. The most appropriate initial step in management is administration of which of the following drugs?
The correlation between anesthetic potency and lipid solubility
An asymptomatic 38-year-old woman is scheduled for elective cesarean delivery. The preoperative EKG shows left axis deviation that was not present one year ago. The most appropriate next step is to
A 63-year-old man with a history of congestive heart failure and left ventricular dilation is scheduled for carotid endarterectomy. During carotid cross-clamping, the surgeon requests that systolic blood pressure be increased from 100 to 160 mmHg. Compared with an identical patient with normal left ventricular size, what is the effect of this change in blood pressure on this patient's myocardial oxygen consumption?
Which of the following is most effective for maintaining core body temperature in an adult during general anesthesia for foot surgery?
A patient has an anterior neck injury, hoarseness, labored respirations, subcutaneous emphysema, and laryngeal crepitus following a motor vehicle accident. Which of the following is the best method of securing the airway in this situation?
During surgery of the forearm under axillary block, a patient has pain in the lateral aspect of the forearm and responds by flexing the elbow. The most likely cause is inadequate block of which of the following nerves?
During uncomplicated mask induction with halothane and 50% nitrous oxide in oxygen in a 6-month-old infant with a large ventricular septal defect and valvular pulmonic stenosis, SpO2 decreases from 85% (room air) to 60%; heart rate is 100 bpm and blood pressure is 62/40 mmHg. The most appropriate management is to
A 65-year-old woman has respiratory distress and loss of consciousness immediately following superficial and deep cervical plexus block for right carotid endarterectomy. Which of the following is the most likely cause?
Two days after total abdominal hysterectomy, a 54-year-old woman develops lethargy followed by seizures and coma. Laboratory studies show a serum sodium concentration of 108 mEq/L and serum osmolality of 225 mOsm/kg. The most appropriate next step in management is administration of which of the following?