Acute renal failure, oxalosis, and vitamin C supplementation: a case report and review of the literature.

With the increased use of nonprescription vitamin supplementation, physicians involved in critical care must be aware of the potential complications of these medications. We report the case of a 31-year-old African-American man presenting to the emergency department with acute renal failure. He had previously been well and initially denied the use of any drugs except for vitamin C tablets obtained at a local health food store. This case report and review of the literature is utilized to illustrate the importance of historical data in patients presenting with acute renal failure to a critical care service.