Fig. 5From: Methodological and analytical considerations for intra-operative microdialysisFocally delivered lactate via Lactated Ringer’s perfusate is metabolized to its derivative, pyruvate. The raw peak areas for A lactate and B pyruvate are shown. Lactate was focally delivered in patients for whom a Lactated Ringer’s-containing perfusate was utilized, indicated in redBack to article page