A 14-year-old girl with status asthmaticus is receiving oxygen 3 L/min through nasal prongs. Heart rate is 110 bpm. Arterial blood gas values are PaO2 90 mmHg, PaCO2 32 mmHg, and pH 7.46. If ventilation appears unchanged, which of the following is the most reliable sign of impending respiratory failure?
Compared with normal adults, which of the following characteristics of neonates best explains the more rapid inhalation induction in neonates?
Hyperkalemia in response to the administration of an intubating dose of succinylcholine is associated with each of the following disorders EXCEPT
A 23-year-old man who is receiving his first anesthetic has not resumed spontaneous ventilation two hours after receiving succinylcholine. The train-of-four monitor shows no twitch response. Which of the following is the most likely cholinesterase genotype in this patient?
A 15-year-old previously healthy boy is scheduled for a celiotomy to relieve an acute intestinal obstruction. A rapid sequence induction is used. Anesthesia is maintained with a balanced technique including nitrous oxide and oxygen (5L:2L), meperidine, and pancuronium. Because of abdominal distention and the high pressure required for inflation of the lungs, a nasogastric tube is inserted. The abdomen remains distended, but compliance improves dramatically. At this time the patient is cyanotic, PaO2 is 48 mmHg, PaCO2 is 52 mmHg, and pH is 7.29. Nitrous oxide is discontinued. The most important therapeutic measure is to
Which of the following is the primary physiologic response in a neonate exposed to a hypothermic environment?
Which of the following statements concerning pulmonary function in patients with pulmonary fibrosis is true?
During an inguinal hernia repair, a newborn infant will have a larger fluid requirement (in milliliters per kilogram) than an adult because of relatively greater
In treating arterial hypertension in a patient with a head injury, the agent LEAST likely to increase intracranial pressure is
A patient with cirrhosis presenting for liver transplantation is likely to exhibit each of the following EXCEPT