What Is the Best Measure of the Efficiency of Gas

question 49

Multiple Choice

What is the best measure of the efficiency of gas exchange in the lung?

• A) PaCO₂
• B) V_DS/V_T
• C) End-tidal PCO₂
• D) PaCO₂/PETCO₂

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Definitions:

Macrophage

A type of white blood cell that engulfs and digests cellular debris, foreign substances, microbes, and cancer cells.

Phagocytizes

The process by which cells engulf and digest solid particles, typically used by immune system cells to eliminate pathogens and debris.

Infections

The entry and proliferation of microorganisms like bacteria, viruses, and parasites, which are usually absent from the body, frequently leading to sickness.

Protein Fibers

Long, filamentous proteins critical to the structure and function of the body's connective tissues.