Conversation: The conversation between human and AI assistant.
[|Human|] My husband has fluid on the brain. He had a spinal tap yesterday to drain excess fluid. He has been hallucinating with mood swings and agitation. He also has short term memory problems repeating the same questions over and over. Picking imaginary threads off his clothes. Is this all related and I just need to wait it out or is more going on. He has many health issues going on. No changes in medications.
[|AI|]  Hello, Do understand that the person undergoes a lumbar puncture (LP) as an investigation modality. There is a possibility that the symptoms occurred after the LP but the fact that the test was ordered prior to the symptoms suggests that there was some neurological problem going on before the LP was done (details of which are not available on the query). So, I think the symptoms are related to ongoing problem, not LP. As for the cause of the symptoms, it would be inappropriate to comment on the diagnosis without clinical details and other investigations. One of the reasons why LP is done is infection and severe infection-called meningoencephalitis- can cause the symptoms. As for the excess fluid Chat Doctor.