Re-exposure causing rapid onset of vancomycin induced thrombocytopenia.

Vancomycin is used for the treatment of gram-positive infections. The increasing prevalence of methicillin-resistant since the 1980 s has led to a significant increase in the clinical utility of vancomycin in the United States. The diagnosis of vancomycin induced thrombocytopenia (VIT) poses a challenge since it requires the exclusion of other etiologies of thrombocytopenia, such as infectious or immunologic diseases and alternative drugs.