Cаlculаte аirway resistance immediately befоre and after treatment.
A 62-yeаr-оld pаtient develоps respirаtоry failure 3 days after severe pneumonia. Imaging shows bilateral opacities, and the edema is not fully explained by cardiac failure or fluid overload. Predicted body weight is 60 kg. The patient is passive on volume control: VT 480 mL, FiO2 0.60, PEEP 8 cm H2O, and Pplat 32 cm H2O. ABGs show pH 7.34, PaCO2 44 mm Hg, and PaO2 72 mm Hg. Total PEEP equals set PEEP Calculate the P/F ratio and classify the oxygenation impairment using the Berlin definition. Calculate VT at 6 mL/kg predicted body weight. Calculate the current static respiratory system compliance Recommend the first lung-protective VT change and name one measurement needed to evaluate the response.