The Reason Why Carbon Monoxide Is Used in DLCO Studies

question 19

Multiple Choice

The reason why carbon monoxide is used in DLCO studies instead of oxygen is because carbon monoxide is:

• A) more readily available than oxygen.
• B) neither diffusion nor perfusion limited.
• C) perfusion limited and not diffusion limited.
• D) diffusion limited and not perfusion limited.

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Definitions:

Causal Factor

An element or factor that brings about a change or results in a particular effect or outcome.

Necessary Condition

a prerequisite that must be met for a certain event or outcome to occur.

Sufficient Condition

A condition or set of conditions that will ensure the occurrence of a particular outcome.

Sufficient Condition

A condition or set of conditions that guarantees the occurrence or the truth of something else but is not always necessary for it to happen.