A 34-Year-Old Man Is Being Evaluated for Acute Hypoxemic Respiratory

question 293

Multiple Choice

A 34-year-old man is being evaluated for acute hypoxemic respiratory failure.  Two days ago, the patient was brought to the emergency department due to opioid and alcohol intoxication.  While unconscious, he vomited profusely and then rapidly developed hypoxia and shortness of breath that has continued to worsen.  Today, temperature is 38.4 C (101.1 F) , blood pressure is 108/74 mm Hg, pulse is 120/min, and respirations are 26/min.  Diffuse crackles are heard on auscultation.  The extremities are warm, well perfused, and without edema.  Chest x-ray reveals bilateral alveolar opacities.  The results of arterial blood gas analysis on room air are as follows: Which of the following pathologic processes is the primary contributor to this patient's lung findings?

• A)Diffuse alveolar hemorrhage due to autoantibodies
• B)Eosinophil invasion and hyaline membrane formation
• C)Lymphocyte-mediated granuloma formation around foreign antigens
• D)Release of reactive oxygen species and proteases by neutrophils

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Definitions:

Raymond Cattell

was a psychologist known for his work in personality theory, including the development of the 16 Personality Factor (16PF) questionnaire.

Secondary Traits

Personality characteristics that are less consistent and not as deeply ingrained as primary traits, often influenced by specific contexts.

Traits

Characteristic patterns of thought, emotion, and behavior that are relatively stable over time.

Gordon Allport

A psychologist known for his theory of personality traits and the study of the individual.