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Coronary angiography is a procedure in which a catheter is inserted either in the wrist&#039;s radial artery or the leg&#039;s femoral artery after using an anesthetic. Before the procedure, an individual must fast for 3 to 4 hours. If the person has diabetes, the medicine can be taken after the procedure. After inserting the wire, the right and left coronary arteries are intubated and injected with iron-containing dye to evaluate the blockages. It is a safe procedure, and people rarely react to the dye or any swelling at the site through which the wire is inserted. Dr. S. Bhandari, cardiologist from Delhi, talks on coronary angiography.

Dr. Suman Bhandari

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