Fig. 1
From: Vitamin C improves microvascular reactivity and peripheral tissue perfusion in septic shock patients
A Changes of forearm skin microcirculatory reactivity in response to acetylcholine challenge before and after vitamin C supplementation in patients with septic shock. B Example of skin microcirculatory blood flow change in response to acetylcholine iontophoresis before (blue) and after (orange) vitamin C injection. C Central-to-knee skin temperature gradient before and after vitamin C infusion. PU Perfusion units