:Coronary Angiography
It is a test that uses dye and special X-rays to show the insides of your Coronary arteries .During coronary angiography, Special dye is released in to the blood stream. A procedure called cardiac catheterization is used to get the dye in to the coronary arteries. A thin flexible tube called a catheter is put in to a blood vessel in your arm, groin (upper thing),or neck. The dye makes the coronary arteries visible o x-ray pictures. This helps doctor see blockages in the arteries.If there is only angiography, the patient will be discharged for the procedures that are done from arm but procedures that are done from groin (upper thing); the patient has to stay at hospital for one night. Angiography has little side effects and s the best way for diagnosing coronary artery disease
Artery Bypass Surgery
It is an open surgery which a blood vessel from your chest or arm is removed, one side of it is connected to Aorta and the other side is grafted to the back of the blockage part. This type of surgery is used for those patients that have vast blockages in two or three main coronary arteries
    Open blocked coronary arteries before a heart attack

If the patient is in a critical emergency situation (when there is the risk of heart attack) has the amenities for angiography and procedures, the best solution for opening the blocked coronary arteries is to do the procedure from arm vessels
In the procedure an angioplasty stent is inserted in to the blocked Vein to restore in to the normal