When Using Capnometry or Colorimetry to Differentiate Esophageal from Tracheal

question 31

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 mainstem intubation
• D)delivery of a high FIO₂

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Definitions:

PVGO

Present Value of Growth Opportunities; a model to estimate the portion of a company's stock price that is attributed to future growth opportunities.

Stock Price

The current price at which a particular stock can be bought or sold in the market, influenced by supply and demand, company performance, and market sentiment.

Forecast Earnings

An estimate of a company's future earnings per share over a specific period, often used by analysts to project future financial performance.

ROE

Return on Equity, a measure of the profitability of a business in relation to the equity, calculated as net income divided by shareholder's equity.