Under the Berlin criteria, what is the PaO2/FiO2 range for mild ARDS?

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Multiple Choice

Under the Berlin criteria, what is the PaO2/FiO2 range for mild ARDS?

Explanation:
Under the Berlin criteria, ARDS severity is based on the PaO2/FiO2 ratio while a minimum PEEP or CPAP of 5 cm H2O is used. Mild ARDS corresponds to a PaO2/FiO2 of 200–300 mmHg. So the range 200–300 mmHg best fits the mild category. If the ratio were 100–200, it would be moderate; below 100 would be severe, and values above 300 do not meet ARDS thresholds. This ratio reflects how well oxygen is transferring from air to blood, with lower numbers indicating worse oxygenation and greater severity.

Under the Berlin criteria, ARDS severity is based on the PaO2/FiO2 ratio while a minimum PEEP or CPAP of 5 cm H2O is used. Mild ARDS corresponds to a PaO2/FiO2 of 200–300 mmHg. So the range 200–300 mmHg best fits the mild category. If the ratio were 100–200, it would be moderate; below 100 would be severe, and values above 300 do not meet ARDS thresholds. This ratio reflects how well oxygen is transferring from air to blood, with lower numbers indicating worse oxygenation and greater severity.

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