Multiple choice

Which of the following statements is false about allergic asthma?

  1. The relevant allergen that provokes allergic asthma in a given patient is diagnosed routinely by the use of RAST.

  2. It mainly affects children before the age of five.

  3. Th2 cells are found in bronchoalveolar lavage fluid.

  4. Allergic asthma is characterised by reversible airways obstruction.

  5. Ciclosporin therapy is helpful in severe cases.
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A Correct answer
Explanation

RAST testing is not helpful as most patients are atopic and therefore, react to many environmental allergens. There is a better correlation of clinical relevant allergen with skin prick testing. This is used routinely, particularly in adults. 

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