What Is the Normal P(A-A)O₂ Range While Breathing Room Air

question 6

Multiple Choice

What is the normal P(A-a) O₂ range while breathing room air?

• A) 25 to 50 mm Hg
• B) 10 to 25 mm Hg
• C) Greater than 25 mm Hg
• D) Less than 10 mm Hg

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Definitions:

Light Sleeper

An individual who wakes up easily during sleep, typically due to minor disturbances in the environment.

Central Nervous System

Comprises the brain and spinal cord; the primary information processing center for coordinating bodily functions and responses.

Spinal Cord

A long, thin, tubular structure made up of nervous tissue, which extends from the brain, down the back, and transmits nerve signals between the brain and the body.

Brain

A complex organ of the central nervous system, responsible for processing sensory information, regulating bodily functions, and enabling cognitive abilities such as thought and emotion.