The Values Below Pertain to a Patient Who Is Being

question 32

Multiple Choice

The values below pertain to a patient who is being mechanically ventilated with a measured exhaled tidal volume (Vᴛ) of 700 mL.
$\begin{array} { | l | l | l | } \hline \text { Time } & \text { Peal Inspiratary Presure (ㄴ } \mathrm { H } _ { \mathbf { 2 } } \mathbf { 0 } \text { ) } & \text { Plateau Prefure (cm } \left. \mathrm { H } _ { 2 } \mathbf { O } \right) \\\hline 0800 & 35 & 30 \\\hline 1000 & 39 & 34 \\\hline 1100 & 45 & 39 \\\hline 1130 & 50 & 44 \\\hline\end{array}$
Analysis of this data points to which of the following conclusions?

• A) Airway resistance is increasing.
• B) Airway resistance is decreasing.
• C) Lung compliance is increasing.
• D) Lung compliance is decreasing.

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Definitions:

Correlation Coefficient

A numerical value indicating how much two or more variables change in relation to each other.

Linear Association

A type of relationship between two variables where the graph of their relationship is a straight line, indicating a proportional increase or decrease.

Least Squares Regression

A method to determine the line of best fit by minimizing the sum of squares of the differences between observed and predicted values.

Predicted Value

The value forecasted using a statistical model or algorithm based on current or past data.