A 44-Year-Old Man with a Chronic Cough and Progressive Weight

question 46

Multiple Choice

A 44-year-old man with a chronic cough and progressive weight loss comes to the emergency department.  He has lost 5 kg (11 lb) over the past 3 months.  The patient recently emigrated from Southeast Asia.  Temperature is 37.4 C (99.3 F) , blood pressure is 113/70 mm Hg, pulse is 78/min, and respirations are 18/min.  Chest x-ray reveals an apical left lung infiltrate.  Sputum Gram stain and cultures are negative.  However, culture of a lung biopsy specimen grows acid-fast bacilli.  Microscopy of the lung specimen is shown below. Which of the following processes is most likely to contribute to formation of the finding indicated by the arrow?

• A)Activation of CD8 T lymphocytes
• B)B-lymphocyte transformation
• C)Fibroblast proliferation
• D)Neutrophil infiltration
• E)Cytokine secretion by CD4 T lymphocytes

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Legal measures and rights granted to creators and owners to secure and enforce their claims over their own innovations, writings, music, designs, or other types of intellectual creation.

DNA Theft

The unauthorized collection, use, or analysis of another person's genetic material without their consent, raising ethical and privacy concerns.

Multinational Agricultural Biotechnology

The use of technological tools and techniques by global corporations to modify living organisms for agricultural purposes, aiming at improving crop yields, resistance to pests, and food quality.

Environmental Racism

Is the tendency to heap environmental dangers on people who are disadvantaged and especially on members of disadvantaged racial minority groups.