Conversation: The conversation between human and AI assistant.
[|Human|] hi doctor,20 days before my father had admitted for aasthuma problem.now doctor told he may has a problem in heart have to take angiography. and that doctor told my father may had a blog in all three blood tube in heart but the ECG are normal. please clarify my methanks senthil
[|AI|]  Dear Entail, Sometimes ECG in rest is normal, as our heart needs less blood in rest, so even if there are some blockages in the arteries, at rest it may be sufficient, and rest ECG may be normal. During physical activity our organism needs more blood so the heart as well, and in case there are some blockages in the arteries, the patient may have chest pain and ECG changes. Maybe your father has chest pain or other typical symptoms, or positive stress test, ABD your doctor wants to perform an angiography to check if there are any problems in his arteries. Take care