How do steroids and/or DMARDs affect biopsy results if a renal biopsy for suspected lupus nephritis is delayed?  

In contrast to GCA/TA, where the Mayo clinic has published data that steroid treatment for as much as circa 2-4 weeks is unlikely to result in a false-negative biopsy, as long as accounts for the skip phenomenon and carefully examines multiple sections of the biopsy, I am unaware of similar informat...