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A nurse is caring for a patient suspected of having acute respiratory distress syndrome (ARDS). Which of the following assessment data would support the suspected diagnosis?

Explanation

The lower the patient's arterial oxygen level with high FiO2 levels, the worse the patient's condition. This is because pulmonary edema and decreased surfactant production increases the thickness of the alveolo-capillary space, increasing the distance oxygen must travel to reach the blood. This results in hypoxemia and acidosis.

ARDS has an acute syndrome with rapid onset.

Crackles on auscultation can occur secondary to pulmonary edema. 

Confusion can occur after the onset of hypercapnia. 

Tachypnea can be symptom of ARDS.

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