Conversation: The conversation between human and AI assistant.
[|Human|] My father had an angiogram on Monday. he has had 2 heart attacks & had stents put in then.He didnt need any stents this time but was told his heart is weak, and he may have CHF.  For the last 2 days he has had abdominal,pain, and shortness of breath.   What could be causing this??
[|AI|]  Hello dear, thanks for your question on Chat Doctor. Since he is having abdominal pain with shortness of breath after angiogram, possibility of contrast (used in angiography) induced renal damage is more. Contrast materials are nephrotoxic in nature. And renal toxicity typically seen after 1-2 days of contrast injection. So abdominal pain can be due to kidney injury. Once kidneys are damaged, urine outflow is decreased and so fluid retention in the body increases. This fluid retention can cause pulmonary e Chat Doctor.  This thing will be more severe if heart function is compromised (as in your fathers case). So better to consult doctor and discuss all these and rule out contrast induced nephrotoxicity.