When Using Capnometry or Colorimetry to Differentiate Esophageal from Tracheal

question 49

Multiple Choice

When using capnometry or colorimetry to differentiate esophageal from tracheal placement of an endotracheal tube, which of the following conditions can result in a false-negative finding (i.e., no CO₂ present even when the tube is in the trachea) ?

• A) Cardiac arrest
• B) Gastric CO₂ diffusion
• C) Right main stem intubation
• D) Delivery of a high FiO₂

---

Definitions:

Bean Sprouts

The sprouted seeds of certain beans, commonly used in Asian cuisine and as a healthy ingredient in salads and sandwiches.

Firm's Production

The process or activities undertaken by a business to combine inputs like labor, capital, and materials to produce goods or services for sale.

Cournot Duopolists

Firms in a duopoly market structure, where two companies dominate, that decide on their output level assuming the other's output as given, under Cournot competition.

Demand Curve

Illustrates the relationship between the price of a good and the quantity of that good consumers are willing and able to purchase at each price level.