The critical range for Bilirubin can vary depending on several factors, including age, overall health, and underlying conditions. In general, very high Bilirubin levels, particularly in newborns, can be critical and require immediate medical attention to prevent complications such as kernicterus. However, the specific critical range for Bilirubin should be determined by a healthcare professional based on the individual's circumstances. It is important to consult a healthcare professional promptly if there are concerns about Bilirubin levels, as they can provide proper evaluation, interpretation, and necessary medical interventions.