Final answer:
A cardiac stress test measures the heart's response to physical activity, while a cardiac catheterization is an invasive procedure that allows for a more detailed evaluation of the heart.
Step-by-step explanation:
A cardiac stress test and a cardiac catheterization are two different medical procedures used to evaluate heart health.
A cardiac stress test, also known as an exercise stress test or treadmill test, measures the heart's response to physical activity. During this test, the patient walks or runs on a treadmill while connected to monitoring equipment. This test helps assess the heart's ability to handle increased activity and can detect blockages in the coronary arteries.
On the other hand, a cardiac catheterization is an invasive procedure performed in a hospital setting. It involves the insertion of a thin tube (catheter) into a blood vessel, usually in the arm or leg, and advancing it to the heart. Contrast dye may be injected through the catheter to help visualize the blood vessels and chambers of the heart. Cardiac catheterization allows for a more detailed evaluation of the heart by directly examining the blood vessels, measuring pressures within the heart, and performing interventions such as angioplasty or stent placement if necessary.