There is no specific test to see what anesthetic she can use or not used.
This is assessed as they go.
Novacain makes sense, as people receive this more than once, and can develop a sensitifvity.
Propafol is not in the same class as lidocaine and they should not cross react in theory.
If she reactied to propofol the first time, this was a side effect rather than an allergy.
Tests are currently being develop to see what the genetic compatability is between drugs and individuals.
They are not ready, and do not have enough study to be valid at this point in time.
OK, so that is an initial answer….
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