case 7 SBA

Which of the following is a characteristic feature of asthma?

• Chronic obstructive airflow limitation

• Bronchoconstriction triggered by aspirin

• Persistent productive cough

• Eosinophilic infiltration of the alveoli

A 30-year-old patient with a history of asthma presents with worsening symptoms despite appropriate treatment. Which medication would be most effective in targeting eosinophilic inflammation?

• Long-acting beta-agonists (LABAs)

• Short-acting beta-agonists (SABAs)

• Inhaled corticosteroids (ICS)

• Leukotriene receptor antagonists (LTRAs)

Which of the following is not a common trigger for asthma exacerbation?

• Respiratory tract infections

• Cold weather

• Emotional stress

• Regular exercise

What complement proteins are involved in the classical complement pathway?

• C3, C3b, C5

• MBL, MASP-2, C2, C4

• C3, C5, C6, C7, C8, C9

• C1q, C1r, C1s, C4, C2

Which cell type is responsible for presenting allergen-derived peptides to T lymphocytes?

• Neutrophils

• Eosinophils

• Macrophages

• B lymphocytes

Immunoglobulin E (IgE) is most closely associated with which type of hypersensitivity reaction?

• Type I

• Type II

• Type III

• Type IV

The primary mediator released by mast cells during immediate hypersensitivity reactions is:

• Leukotrienes

• Prostaglandins

• Histamine

• Cytokines

Which type of hypersensitivity reaction is associated with immune complex deposition?

• Type I

• Type II

• Type III

• Type IV

Which of the following is an example of a type I hypersensitivity reaction?

• Allergic contact dermatitis

• Allergic rhinitis

• Delayed-type hypersensitivity

• Serum sickness

Which immune cell is primarily responsible for the production of IgE antibodies in response to an allergen?

• a. Neutrophils

• Eosinophils

• Basophils

• B lymphocytes