<s>[INST] Dr in amonth my mum went for 3 times angiogram.the first One when she had a attack.the dr put a stan.after 3 days she had stan thombosis.so did another angiogram and did baloon.after one week she was discharged.2 days later he lower left leg numb and cold.so the dr did the third angiogram and put a sten.yesterday she was sweating frequently and fell choking.the dr say she have to go for her 4th angiogram on coming monday.is safe to do 4 times angiogram iN a month.she is a diabetic patient.she inject insulin 3 times a day n she got blood pressure. [/INST] Hi,Actually 4 times angiography in a month is much radiation, but if there is a need, it should be done. In the case of your mother it was necessary, and I think the forth is necessary as well. I would advise  you to monitor her serum creatinine.Wishing a good health to your motherIn case of further questions don't hesitate to askRegards, </s>