10 Random Questions


A 1-month-old infant becomes hypoxemic faster during apnea than an adult. Which of the following is the primary cause of this difference?

ADVANCED Respiratory & Critical Care Pediatric

A Fluotec vaporizer is set to administer halothane 4% using a fresh gas flow of 4 L/min. If the diluent gas flow is increased to 8 L/min, and at the same time the room temperature increases from 20 to 25°C, the approximate concentration of halothane delivered to the patient would be

BASIC Equipment & Physics

Oxygen 100 ml/min is bubbled through a vaporizer containing an anesthetic with a vapor pressure of 150 mmHg, and this mixture is added to a fresh gas flow of 5 L/min. The delivered anesthetic concentration is

BASIC Equipment & Physics

A 25-year-old man with known rheumatic heart disease is being evaluated in the critical care unit. Despite decreasing cardiac output, mixed venous blood from a pulmonary artery catheter shows an increase in Sv02. Which of the following is the most likely cause?


The second gas effect refers to

BASIC Pharmacology & Pharmacokinetics

Which of the following findings is an early indication of cyanide toxicity?


During induction of anesthesia, a patient is breathing isoflurane from a semiclosed circle absorber system. The temperature-compensated vaporizer is set to deliver isoflurane 1.5%. Which of the following will result in the lowest inspired concentration of isoflurane?

BASIC Equipment & Physics

To detect the delivery of hypoxic gas mixture, the optimal location for an oxygen analyzer in this circle is

BASIC Equipment & Physics

An 18-month-old child with tetralogy of Fallot is anesthetized with halothane and nitrous oxide. Following intubation, oxygen saturation decreases abruptly from 85% to 45%. The most effective treatment is

ADVANCED Pediatric Cardiac

Myofascial pain is an example of

ADVANCED Regional & Pain