To Verify the Correct Placement of an Oral Endotracheal Tube

question 14

Multiple Choice

To verify the correct placement of an oral endotracheal tube (ET) after insertion,the best initial action by the nurse is to

• A) auscultate for the presence of bilateral breath sounds.
• B) obtain a portable chest x-ray to check tube placement.
• C) observe the chest for symmetric chest movement with ventilation.
• D) use an end-tidal CO₂ monitor to check for placement in the trachea.

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Definitions:

Degrees of Freedom

The number of independent values or quantities which can vary in the calculation of a statistic.

Standard Error

A measure of the statistical accuracy of an estimate, often the standard deviation of the sampling distribution of a statistic.

Critical Values

These are threshold points on the scale of the test statistic that delineate the region where the null hypothesis is rejected, essential in determining the significance of the test outcome.

Alpha

The significance level, a threshold used in hypothesis testing indicating the probability of rejecting the null hypothesis when it is true.