Welcome to HCM! I have read the query and it say that the patients had developed anxiety issues after having an attack of klebsiella pneumonia. I want to tell you that it is a common finding that even an otherwise normal person can develop anxiety / depression after an attack of flu/ viral/ pneumonia. I have seen it many times in my clinical practice. However, the way you have written in the question ( that she might harm herself), I would definitely like to confirm the diagnosis - I suspect that the patients may be having psychosis and not just anxiety. it is commonly seen that -at this old age, after a bout of serious illness, the patient develops psychosis more commonly compared to anxiety. However, this cannot be confirmed - if it is a anxiety or psychosis, without a detailed mentioning of symptoms. So, you should meet a psychiatrist in person and discuss her symptoms, only then exact medicine can be started. I can assure you that with right medicine, even a very old patient gets well safely. So, please donot worry. ## it will help to get her serum electrolytes and kidney function test done before going for any medicine at her age.### Hope there reply is useful Feel free to ask more questions Dr. Manisha Gopal MD Psychiatry