Which Level of a PaO₂/FIO₂ Ratio Is Consistent with a Definition

question 27

Multiple Choice

Which level of a PaO₂/FIO₂ ratio is consistent with a definition of acute lung injury (ALI) ?

• A)50
• B)100 to 200
• C)150
• D)200 to 300

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Definitions:

Unit Volume

The quantity of items or units produced or sold.

Contribution Margin Ratio

The proportion of sales revenue that remains after variable costs are subtracted, indicating how much contributes to covering fixed costs and generating profit.

Fixed Expenses

Costs that do not fluctuate with the level of production or sales, such as rent, insurance, and property taxes.

Contribution Margin Ratio

A ratio that represents the percentage of sales revenue that exceeds variable costs, indicating how much revenue contributes towards covering fixed costs and generating profit.