A Patient Is Diagnosed with a Large Pulmonary Embolism

question 18

Multiple Choice

A patient is diagnosed with a large pulmonary embolism.In explaining to the patient what has happened to cause respiratory failure,what does the nurse understand is the mechanism involved?

• A) Diffusion limitations because the blood gas membrane is thickened
• B) Alveolar hypoventilation because of the obstruction in the small airways
• C) Shunting because the blood perfuses large areas of underventilated alveoli
• D) Ventilation-perfusion (V/Q)mismatch because of ventilation to areas where blood flow is decreased

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Definitions:

Degrees Of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution or calculation.

Null Hypothesis

A hypothesis stating there is no significant difference or effect, serving as the default assumption in hypothesis testing.

T Test

A statistical test used to compare the means of two groups to see if there is a significant difference between them, often used when dealing with small sample sizes.

Research Hypothesis

A speculative statement about the relationship between two or more variables that is tested through research.