14164075
Description
Flashcards by Averil Tam, updated more than 1 year ago
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Created by Averil Tam
almost 6 years ago
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| Question | Answer |
| 1. YES/NO? 10yo develops a spotty rash 3 days after commencing amoxycillin for a chest infection. Is penicillin ‘RAST ‘ testing likely to be positive? | No. Morbilliform rash and delayed onset of reaction are both against an IgE mediated drug allergy. Allergen specific IgE ('RAST’) testing to penicillin will only identify IgE mediated reactions. |
| 2. Which of the following antibiotics is contraindicated in a penicillin allergic child? A. Cefalexin B. Erythromycin C. Meropenam D. Roxithromycin E. Ticarcillin | E. Ticarcillin shares the same nucleus as penicillin and known to cause reactions in penicillin allergic individuals. |
| 3. 2yo with recurrent cervical lymphadenitis secondary to staphylococcal infection. Which component of the immune system is most likely to be defective? A. Antibodies B. Complement C. Neutrophils D. NK cells E. T cells | C |
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