Hong Kong Hospital Authority on the adverse event management approach to adverse event grading criteria a *** divided into four levels right

Grade 0: event stopped before execution;

Grade I: event occurred and was executed, but did not cause harm;

Grade II: minor harm with no change in vital signs, requiring clinical observation and minor treatment;

Grade III: moderate harm with some changes in vital signs, requiring further clinical observation and simple treatment;

Grade IV: severe injury, significant changes in vital signs, requiring elevated level of care and emergency treatment;

Grade V: permanent loss of function;

Grade VI: death.