<qa>  What is the primary outcome of the study?This is a randomized, double-blind study designed to evaluate the effectiveness of ketamine versus placebo in addition to usual care used during dressing changes in 30 thermally injured subjects. The primary outcomes are the opioid and benzodiazepine requirements surrounding dressing changes, pain profiles, hemodynamic changes, and pain-related anxiety scores related to ketamine use versus placebo. Secondary outcomes are exploratory and will evaluate the inflammatory markers, IL-1β and IL-6, and their presence in regards to ketamine versus placebo as well as their associations with ASD, depression, and PTSD. 