Sarah has a chest x-ray that shows she has tubercles in her lungs. What does that mean?
A. She had tuberculosis in the past but has recovered.
B. She has a dormant form of tuberculosis that could become active if her resistance is lower.
C. She has an active case of tuberculosis and is being treated with antibiotics.
D. She has a history of an infection that is similar to tuberculosis and therefore is immune to TB.
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Other quiz: Epithelial
Epithelial tissue are classified by permeability.