Which of the following statements concerning cardiovascular physiology in a healthy term neonate is true?
A 25-year-old man with known rheumatic heart disease is being evaluated in the critical care unit. Despite decreasing cardiac output, mixed venous blood from a pulmonary artery catheter shows an increase in Sv02. Which of the following is the most likely cause?
A 19-year-old woman has severe nausea and vomiting following laparoscopy. After intramuscular administration of prochlorperazine 10 mg, she has muscle spasms in the face, neck, and tongue. Which of the following is the most appropriate management?
During enflurane anesthesia for colectomy in a 75-year-old man with sepsis, urine output decreases to 10 ml/hr. Heart rate is 120 bpm, blood pressure is 100/50 mmHg, central venous pressure is 10 mmHg, and pulmonary artery occlusion pressure is 15 mmHg. The most appropriate management at this time is to
During induction of anesthesia, a 56-year-old man with small bowel obstruction vomits a large quantity of undigested food particles and presumably aspirates. After instituting ventilation with pure oxygen, the most appropriate management is to
A patient who has severe pain from unresectable cancer of the base of the tongue is referred for a neurolytic block. A block of which of the following will be effective?
A 70-kg man has stable 80% neuromuscular block induced with d-tubocurarine. Compared with neostigmine 3 mg, antagonism with edrophonium 70 mg will
During protamine administration following separation from cardiopulmonary bypass, blood pressure decreases from 100/70 to 60/30 mmHg and peak inspiratory pressure increases from 26 to 60 cm H2O. The most appropriate next step in management is administration of
Which of the following is most likely to be effective in the treatment of clinically evident cerebral vasospasm occurring after subarachnoid hemorrhage?
During laser excision of vocal cord polyps in a 5-year-old boy, dark smoke suddenly appears in the surgical field. The trachea is intubated and anesthesia is being maintained with halothane, nitrous oxide, and oxygen. The most appropriate initial step is to