Hi, I am Dr.Bruno. I have read your question with care and understand your concerns about Delirium. Let me try to help you There are lots of factors that can cause delirium in a ICU like Acid Base Imbalance, Electrolyte imbalance etc Almost all these problems are easy to treat and the patient will improve within days. The good news is that CT Scan and EEG are normal. So, as of now, I don t think that there is anything to worry Hope you found the answer helpful. If you need any clarification / have doubts / have additional questions / have follow up questions, then please do not hesitate in asking again. I will be happy to answer your questions. Let me know if I can assist you further. Take care.