The chemical mediator that causes prolonged bronchospasm, vascular permeability, and mucus secretion of asthmatic patients is ______.
A) prostaglandin
B) serotonin
C) leukotriene
D) platelet-activating factor
E) histamine
Correct Answer:
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Q3: A systemic, sometimes fatal, reaction with airway
Q4: A second encounter with an allergen that
Q5: Allergies run in families because _.
A) immunoglobulins
Q6: Which type/s of hypersensitivities is IgG is
Q7: Any heightened immune response resulting in tissue
Q9: The major category(ies) of hypersensitivity(ies) that typically
Q10: Bee sting venom is considered to be
Q11: A chronic, local allergy such as hay
Q12: What will be the immediate action of
Q13: Which event represents the process of releasing
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