The operation known as angio by people is carried out for diagnosis (angiography) and for treatment. Angiography means the imaging of the veins and arteries. A drug called contrast substance that makes the veins visible is administered into the veins and films called angiograms are obtained.  Thanks to angiography, the veins fostering the organs are imaged and diagnostic information regarding vascular diseases or the organs fostered by those veins are obtained. The classical method for the treatment of angio is angioplasty. It is carried out in order to reopen the narrowed or blocked veins through a special devices called balloon or stent.

In the light of that information, since nothing related to eating and drinking take place in both angiography or angioplasty, fasting is not invalidated.