https://www.nice.org.uk/guidance/cg174/resources/intravenous-fluid-therapy-in-adults-in-hospital-algorithm-poster-set-191627821

• 4,2,1 rule: 4ml/kg/hr for the first 10kg, 2ml/kg/hr for the second 10kg, and 1ml/kg/hr after that, with a maximum of 100ml/hr maintenance