After an uncomplicated cesarean delivery, a full-term neonate has intermittent cyanosis. Diaphragmatic effort is vigorous and respiratory distress is relieved while crying. The most likely diagnosis is
A patient who is scheduled for emergency laparotomy for bowel obstruction has had oliguria for three hours. She has had hypertension for 10 years. Which of the following laboratory findings would indicate preoperative fluid challenge?
The following hemodynamic values are obtained two hours after coronary artery bypass surgery: Cardiac index 1.7 L/min/m2; Pulm Art. Occ. Pressure 22 mmHg; MAP 60 mmHg; Urine volume 0.2 ml/kg/hr. The most appropriate management is
In a patient with asthma, which of the following drugs used to treat supraventricular tachycardia is LEAST likely to induce bronchospasm?
Each of the following indicates a hemolytic transfusion reaction in an anesthetized patient EXCEPT
A comatose 40-year-old man is to undergo evacuation of an acute subdural hematoma. His left pupil is dilated and blood is present behind the left tympanic membrane. Each of the following is an acceptable intervention EXCEPT
Having received excessive intraoperative blood replacement, a patient anesthetized with fentanyl, diazepam, and nitrous oxide develops acute pulmonary edema. The drug most likely to have an immediate beneficial effect is
In the PACU after resection of an occipital astrocytoma, a patient has a urine output greater than 300 ml/hr, serum osmolality of 310 mOsm/L, and a hematocrit of 40% (equal to the preoperative value). Intraoperative blood loss was estimated to be 750 ml; furosemide and mannitol were administered during the procedure. The most appropriate next step is
Thirty-six hours after primary repair of meningomyelocele, a term newborn has frequent periods of apnea lasting 25 seconds and associated with oxygen desaturation to 80%. The most likely explanation is
Alveolar stability at varying lung volumes is maintained by