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HypersensivitytoAbx
lecture 27 gruchalla
| Question | Answer |
|---|---|
| medicines notorious for causing Stevens-Johnson syndrome | anticonvulsants, NSAIDs, sulfonamides |
| bioactivation/hapten hypothesis | immunogens are formed usually after metabolism of a drug or conjugation of a drug hapten to proteins in the body (ex. PCN, Sulfa) |
| when desensitization is performed | in pts whom IgE Abs to a particular drug are known or are presumed to exist and NO ALTERNATIVE drug is available |
| in vitro test for mast cell degraunulations | serum tryptase is the selective marker; may not be elevated in well-hydrated normotensive pts. peak levels are 2 hrs after anaphylaxis |