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Mrs. J. is a 31-year-old female admitted to the critical care unit with respiratory distress after...

Mrs. J. is a 31-year-old female admitted to the critical care unit with respiratory distress after getting the “flu.” Her condition worsens; SpO2 is 85% on Venturi mask at 0.50. ABGs show a PaO2 of 50 mm Hg. Her chest x-ray is showing infiltrates. Calculate Mrs. J.’s PaO2/FiO2 ratio, and interpret the findings.

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Answer #1

ANSWER.

* Calculation of Mrs.j.s PaO2/FiO2 ratio.

Here

PaO2 = 50 mm Hg

FiO2 = 0.5

So

PaO2 / FiO2 ratio = 50/0.5

= 100

* According to Berlin criteria PaO2 / FiO2 ratio

100 indicate moderate ARDS ( Acute respiratory

distress syndrome).

  

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