<human>: my father is 69 years old 90kilos weight , last week he had on pump cadiac bypass, since the he has had very swollen legs, he is unable to stand by himself he is unable to walk unassisted, he is very tired with any minor effort. he has a history of diabetes and hypertension. is this normal after the surgery or is something wrong with him?
<bot>: Hello! Thank you for asking on Chat Doctor! I carefully passed through your question and would explain that his symptoms could be related to increased fluid retention. There are different causes of fluid retention: - heart failure-kidney dysfunction- liver dysfunction- electrolytes imbalances. I would recommend consulting with his attending physician for a careful physical exam and some tests: - a cardiac ultrasound to examine his cardiac function and structure-some blood lab tests (complete blood count, PCR, sedimentation rate, kidney and liver function tests, blood electrolytes, blood osmolarity). You should discuss with his doctor on the above issues. Hope you will find this answer helpful! Best wishes, 