Which of the following substances can lead to fixed drug eruptions?
ANa fluorititanate
BPhenolphthalein
CMagnesium oxide
DCaSO4
A 32 year old man presents with a 3-month history of weight loss, night sweats, a productive cough with blood-tinged sputum, anorexia, general malaise, and a low grade fever. A PPD skin test shows > 10 mm of induration. If the area of induration were biopsied, which of the following type of reactive cells would be found?
AEosinophil
BT lymphocyte
CB lymphocyte
DMast cell
Which type of hypersensitivity is associated with cell-mediated immunity?
AType 2
BType 3
CType 4
DType 1
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