From Salon:
"When asked about the AIED diagnosis late last week, House spokeswoman Christa Spieth Nuber initially told Salon that Limbaugh underwent blood tests during his diagnosis and treatment at House, and that the tests did not reveal any signs of drug abuse. Minutes later, however, Spieth Nuber called back to say that she had discussed Limbaugh's case with Dr. Jennifer Derebery, one of the physicians who had treated Limbaugh, and that Derebery told her that Limbaugh had not, in fact, been tested for "toxicity" related to drug use. She said her earlier statement to the contrary had been an error based on her own mistaken assumption about the way Limbaugh's case would have been handled."
When my daughter lost her hearing, one of the first things they checked was whether or not she was on any ototoxic meds. Did the docs perform a Western Blot test on Rush? I haven't seen any evidence online of a sustantial workup, just the docs saying that they based the diagnoisis on his statements to them and their observations, plus the usual process of elimination- although they neglected the drug screening....
