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:

Primary Sexual Characteristics

The physical structures directly involved in reproduction, present at birth.

Complex Changes

In the context of psychology, this could refer to the multifaceted adjustments in behavior or cognition that occur as a result of various internal and external factors. If not applicable, NO.

Menarche

The onset of menstruation, marking the beginning of a female's reproductive years.

Late Adulthood

The stage of life characterized by the aging process, typically considered to start around age 65 and beyond.