Why is Crohn's disease more likely to cause intestinal obstruction than ulcerative colitis?
Crohn's disease causes granulomas to form in the submucosal layer.
Crohn's disease is located in the small intestine.
Crohn's disease causes abdominal pain and watery diarrhea.
Crohn's disease is exacerbated by certain foods, such as spicy foods.
The Correct Answer is A
A. Crohn's disease can cause granulomatous inflammation that leads to strictures in the bowel, increasing the risk of obstruction.
B. While Crohn's disease often affects the small intestine, ulcerative colitis typically affects the colon, and both can lead to obstructions, but the nature of Crohn's lesions contributes more to this risk.
C. Abdominal pain and diarrhea are symptoms but do not specifically explain obstruction risk.
D. Dietary triggers may exacerbate symptoms but are not a primary reason for increased obstruction risk in Crohn's.
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Related Questions
Correct Answer is C
Explanation
A. Autoimmune diseases involve inappropriate immune responses but are not classified solely as hypersensitivity reactions.
B. Degranulation refers to the release of substances from immune cells, often a part of hypersensitivity reactions, but does not encapsulate the full scope of their consequences.
C. Allergic diseases are directly caused by hypersensitivity responses, which occur when the immune system reacts excessively to harmless substances.
D. Deficiency syndromes relate to a lack of immune function or components, not the excessive responses seen in hypersensitivity reactions.
Correct Answer is D
Explanation
A. Oral edema and vomiting are not typical signs of allergic rhinitis; these symptoms are more associated with systemic allergic reactions or anaphylaxis.
B. Laryngeal edema may occur in severe allergic reactions but is not characteristic of allergic rhinitis specifically.
C. Urticaria refers to hives and is another form of allergic response but does not describe the nasal symptoms typical of allergic rhinitis.
D. Swelling and itching of the nasal passages are hallmark symptoms of allergic rhinitis due to inflammation from allergen exposure.
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