10 Random Questions

After inflation of both the tracheal and endobronchial cuffs of a left-sided double-lumen tube, the following are noted on auscultation of the chest: Left lumen clamped --> Breath sounds absent bilaterally; Right lumen clamped --> Breath sounds present on left only; Both lumens open --> Breath sounds present on left only. The most appropriate action is to

BASIC Equipment & Physics

One hour after an open cholecystectomy, a 42-year-old patient is hemodynamically stable and breathing spontaneously (rate 10/min and regular) at an FiO2 of 0.4. Fentanyl, isoflurane, nitrous oxide, and pancuronium were used during the procedure. Analysis of arterial blood gases (pH, pCO2, pO2) is most likely to show:

BASIC Respiratory & Critical Care

A 56-year-old woman with pulmonary fibrosis is scheduled for pneumonectomy. Which of the following parameters best predicts potential postoperative functional impairment?

ADVANCED Respiratory & Critical Care General

A 45-year-old woman undergoes aortic valve replacement for aortic stenosis. Two minutes after removal of the venous cannulae, air is noted in the arterial inflow cannula. Heart rate is 80 bpm, blood pressure is 95/60 mmHg, and cardiac index is 1.5 L/min/m2. ST-segment elevation is noted in EKG leads II, III, and aVF. The most appropriate next step is to

The most effective treatment of severe carbon monoxide poisoning in a 2-year-old child is

ADVANCED Pediatric

A 34-year-old man has hyperkalemia-induced asystole. After initiating cardiopulmonary resuscitation, which of the following is the most appropriate next step in management?

Which of the following is most effective in preventing intraoperative hypothermia in adults?

BASIC Equipment & Physics

A 19-year-old college student is brought to the emergency department cyanotic and incoherent. Respiratory rate is 48/min, pulse is 140 bpm, and blood pressure is 140/85 mmHg. The only history obtainable is that he was at a party and suddenly felt sick. Cyanosis persists despite administration of pure oxygen by mask. A venous blood sample is chocolate-brown. The action most beneficial to the patient is to


A woman is undergoing a repeat cesarean delivery at term following a normal pregnancy. Anesthesia consists of thiopental 250 mg, succinylcholine infusion (180 mg in 20 minutes), nitrous oxide and oxygen (7:3 L/min) until delivery. Twenty minutes after the incision a floppy newborn with a 1-minute Apgar score of 5 is delivered. The most likely explanation for the infant's condition is


Which of the following is true of both the neonatal and adult airways?

ADVANCED Pediatric