Question

Which of the following is NOT a criterion for acute respiratory distress syndrome (ARDS)?

A. Acute onset of pathology
B. PaOP ≤ 18 mm Hg
C. Diffuse bilateral radiographic opacities
D. Requirement for controlled mechanical ventilation
E. Pa o2 :FiO 2 ratio < 200 mm Hg

Answer 1

The criterion that is NOT associated with acute respiratory distress syndrome (ARDS) is B. PaOP ≤ 18 mm Hg.

Step-by-step explanation:

The criterion that is NOT associated with acute respiratory distress syndrome (ARDS) is B. PaOP ≤ 18 mm Hg.Acute Respiratory Distress Syndrome (ARDS) is defined by criteria such as an acute onset of pathology, diffuse bilateral radiographic opacities, the need for controlled mechanical ventilation, and a low PaO2:FiO2 ratio (<200 mm Hg), indicative of severe hypoxemia. However, pulmonary artery occlusion pressure (PaOP), which measures the pressure in the pulmonary artery, is not a specific criterion for ARDS. PaOP is more commonly associated with conditions like cardiogenic pulmonary edema. Thus, the absence of a specific PaOP threshold is an important distinction, emphasizing that ARDS diagnosis is based on a combination of clinical, radiographic, and oxygenation criteria.