A 70-kg 78-year-old man undergoing small-bowel resection during anesthesia with isoflurane in oxygen becomes hypotensive and develops frothy pink sputum in the endotracheal tube. Heart rate is 50 bpm, blood pressure is 75/60 mmHg, pulmonary artery occlusion pressure is 22 mmHg, and cardiac output is 1.7 L/min. The most appropriate initial step in management is administration of which of the following?
During general anesthesia with spontaneous ventilation, a patient has a VD/VT of 0.5. Which of the following is most likely to decrease the ratio?
An advantage of CPDA-1 over CPD for storage of packed red blood cells is
A 6-year-old child with asthma begins wheezing during anesthesia with halothane and nitrous oxide in oxygen. A loading dose of aminophylline is administered followed by continuous infusion. Premature ventricular contractions appear on the ECG. The most appropriate management is to
A patient is undergoing exploration of a stab wound to the left side of the neck. On awake laryngoscopy, the left vocal cord is in midposition and the right vocal cord is abducted during inspiration. The most likely cause of these findings is trauma to which of the following structures on the left?
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
Administration of 200 mEq of sodium bicarbonate during cardiopulmonary resuscitation is associated with
Which of the following is a respiratory effect of 1 MAC halothane?
A 24-year-old man is undergoing induction of general anesthesia prior to appendectomy. During laryngoscopy, he regurgitates a large amount of bilious material. An endotracheal tube is inserted; aspiration shows bile-stained fluid. Which of the following is the most appropriate next step in management?
A 52-year-old woman undergoes facial surgery during general endotracheal anesthesia. The ventilator is set to deliver a tidal volume of 600 ml and a respiratory rate of 10/min at an FiO2 of 1.0. SpO2 is 100%, peak inspiratory pressure is 18 cmH2O, and PetCO2 is 40 mmHg. The surgeon flexes the patient's head so the chin touches the chest. Which of the following findings indicates that endobronchial intubation has NOT occurred?