F_IO₂ Delivery Increases During Inspiration While the BirdMark 7A Is

question 39

Multiple Choice

F_IO₂ delivery increases during inspiration while the BirdMark 7A is operating using air mix. Which of the following contribute to this fact?
I. Increasing pressure in the pressure chamber decreases air entrainment.
II. At 12 cmH₂O, the venturi gate closes.
III. After about 12 cmH₂O, gas flow through the circuit is source gas.
IV. Excess flow (source gas) is directed through the timing cartridge.

• A) I
• B) I and II
• C) I, II, and III
• D) I, II, III, and IV

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Definitions:

Reciprocal Determinism

A concept in psychology that suggests a person's behavior both influences and is influenced by personal factors and the social environment.

Mutual Dependency

A condition in which two or more entities rely on each other equally for resources, support, or existence.

Psychic Determinism

The psychoanalytic concept that all mental processes are not spontaneous but are determined by the unconscious or pre-existing mental complexes.

Reciprocal Relativism

Reciprocal relativism suggests that understanding and knowledge are relative and can vary depending on the interactions between individuals and their environments.