with Myocardial infraction with angiography
done her coronary blockage must be like not requring any angioplasty
so she is on medicatios advised to seems justified to control diabetes take insulin as far as diet is concerned take low fat low cholesterol
low salt diet and regular walking or cardiac rehabilitation
what is her age and weight is she over weight then calores may be reduced taking unsaturated fats eg.Rice bran oil,olive oil inlimited quantity and avoiding butter and cheese and trans fats fried items.Take green vegetable /tomato/sproute beans anf if non veg fish and lean meat,and continuous follow up to keep diabetes and BP and heart condition under medical supervision .