Quizzes & Surveys Archive | Page 5 of 8

Welcome to your Question of the Week #16

An infant delivered via cesarean section at 28 weeks gestational age is unable to maintain her oxygen saturation above 90% despite being on an FiO₂ of 0.6. The infant is intubated and started on surfactant replacement therapy. Which of the following MOST accurately describes the mechanism of action of surfactant?

A. Decreases lung compliance

B. Decreases alveolar surface tension

C. Increases alveolar diffusion

D. Decreases transpulmonary pressure

Question of the Week #15

A 3-year-old boy with severe dystrophic epidermolysis bullosa presents for esophageal dilation under general anesthesia. His limbs are covered in bandages and his mouth opening is slightly limited. Which of the following techniques is LEAST likely to induce formation of additional bullae?

A. Prolonged mask ventilation

B. An awake fiberoptic intubation

C. An asleep blind nasal intubation

D. Direct laryngoscopy with a well-lubricated blade

Question of the Week #14

A 2-day old term neonate is undergoing an exploratory laparotomy for duodenal atresia. Anesthetic induction is planned with propofol, fentanyl, and rocuronium. Which of the following pharmacologic considerations is MOST accurate when using rocuronium in this neonate, as compared to an adult?

A. A higher dose is required secondary to immature neuromuscular transmission.

B. The volume of distribution is smaller secondary to decreased total body water.

C. The onset of action is faster secondary to a relative increase in cardiac output.

D. More frequent dosing is required secondary to increased metabolism and clearance.

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