<s>[INST] My mother, aged 69, shows signs of acute anaemia and we are trying to figure out the cause. She was hospitalised and treated a month ago for severe respiratory infection and given strong antibiotics. Side effects included tachycardia and significant drop in potassium levels, the latter of which was addressed with medication. She was discharged after 10 days, improved and regained her appetite. But for the last about 3-4 days she has been extremely tired and weak, has lost her appetite, finds it hard to swallow, is occasionally feverish, finds it a bit difficult to talk, and her feet and face are beginning to show signs of puffiness, all of which lead us to believe it might be anaemia. As she was thoroughly tested in hospital for kidney and lung problems, and given the all-clear, we believe this might be drug-related acute anaemia. Any advice/information would be much appreciated. Thanks. [/INST] Hi, dairy have gone through your question. I can understand your concern. She may have anemia. We should search for the cause of her anemia first. You should go for complete blood count, peripheral smear examination, anemia profile and ultrasound abdomen. This will give you exact cause of her anemia. It may be due to iron deficiency, vitamin b12 deficiency, hemolysis, blood loss or other cause. Then she should take treatment according to cause. Hope I have answered your question, if you have any doubts then contact me at bit.ly/ Chat Doctor. Thanks for using Chat Doctor. Wish you a very good health. </s>