A permanent record is also produced. If the doctors want to view your coronary arteries, the catheter is guided into each of the coronary artery openings. Dye is pumped into the arteries a few times. . This flow of dye. While the dye is moving through your blood vessels, you may feel hot or flushed for up to 30 seconds.
Some people experience slight nausea or extra heartbeats.
The procedure takes from 20 to 40 minutes from the time of catheter insertion. The total procedure lasts about an hour to an hour and a half. When the tests are finished, the catheter will be removed. If the femoral artery in the groin was used, firm pressure will be applied to the site for 10 to 20 minutes. Sometimes a 5 pound sandbag will be placed on top of the bandages for 4 to 6 hours.