10 Random Questions


A 62-year-old man with severe emphysema was treated for the sixth time with assisted mechanical ventilation (Fi02 0.6, peak inspiratory pressure 25 mmHg, rate 22/min, insp/exp 0.3). Arterial blood gas values with this therapy are Pa02 73 mmHg, PaC02 48 mmHg, and pH 7.32. During the second day of treatment he suddenly becomes dusky, with increased respiratory rate. Arterial blood gas values are Pa02 42 mmHg, PaC02 67 mmHg, and pH 7.25. Tracheal lavage and suction fail to improve his condition. The therapeutic measure most likely to correct this acute episode is to


Compared with thiopental, methohexital is characterized by

BASIC Pharmacology & Pharmacokinetics

Neostigmine administered intravenously without atropine can produce each of the following EXCEPT

BASIC Pharmacology & Pharmacokinetics

During apneic oxygenation (FiO2 1.0) through a rigid bronchoscope

BASIC Respiratory & Critical Care

Preoperative administration of alpha-adrenergic inhibitors will usually reverse ECG changes due to


Immediately following radical prostatectomy, ketorolac administered for analgesia


A patient develops urticaria and pruritus while receiving a blood transfusion in the PACU. Blood pressure and heart rate are unchanged from pretransfusion values. The most appropriate action is administration of

BASIC Transfusions & Fluids

A patient whose trachea is intubated develops partial airway obstruction two hours after induction of fentanyl, nitrous oxide, oxygen anesthesia. The anesthesiologist discontinues the nitrous oxide and controls ventilation, and there is gradual improvement during the next hour. No evidence of a respiratory disorder is found at the conclusion of the anesthetic. Which of the following is most likely?

BASIC Equipment & Physics

Compared with normal adults, which of the following characteristics of neonates best explains the more rapid inhalation induction in neonates?

ADVANCED Pediatric

A patient who is receiving ventilatory support after coronary artery bypass grafting has a PaO2 of 132 mmHg, a PaCO2 of 19 mmHg, and a pH of 7.57. Which of the following is most likely to result from this level of hypocarbia?

ADVANCED Neuro Cardiac