Hi there, I'm 24 years old and was just booked for a catheter ablation coming up in 13 days. My cardiologist is worried because of the risk factors that I'm in birth control and I smoke. She is concerned about blood clots even though the ultrasound I had done on my legs showed perfectly healthy veins and no signs of clots. Has any one else been in this situation? I've tried to quit smoking before and because I am not ready I have not been successful. Any advice?