A patient is admitted to the ED after an episode of severe chest pain, and the physician schedules the patient for coronary angiography and possible percutaneous coronary intervention (PCI). The nurse prepares the patient for the procedure by explaining that it is used to:

locate any coronary artery obstructions and administer thrombolytic agents.

determine whether there are any structural defects in the chambers of the heart.

visualize any coronary artery blockages and dilate any obstructed arteries.

measure the amount of blood being pumped from the heart with each contraction.