Final answer:
Anaphylactic shock can result from immediate hypersensitivity when an allergen enters the blood. This is true.
Step-by-step explanation:
Anaphylactic shock can result from an immediate hypersensitivity where the allergen enters the blood. This is true. Anaphylaxis is a severe allergic reaction that occurs when the immune system overreacts to an allergen, leading to a swift and potentially life-threatening response. In anaphylactic shock, the allergen triggers a systemic mast cell degranulation, causing a drop in blood pressure and bronchial smooth muscle contractions. This can happen when allergens are eaten, injected, or inhaled.