Stress tests can be incredibly helpful for the diagnosis of various cardiovascular conditions, from atherosclerosis to heart disease. These tests are non-invasive. Basically, you exercise vigorously while under the observation of a doctor who monitors your heart rate, blood pressure, and other vital signs. In spite of the fact that stress tests are non-invasive, they do tend to make patients nervous. Much of this nervousness is due to the fact that patients simply don't know what to expect — so having the answers to these commonly asked questions might make you more confident heading into your stress test.

Do you have to run on a treadmill?

You've probably heard that stress tests involve running on a treadmill. And if you have a condition like arthritis or an old knee injury, this may have you worried. Here's the good news: while running on a treadmill is the most common form of exercise used in a stress test simply because it's easy, your doctor can arrange for a more joint-friendly alternative. You can ride an exercise bike or "run" on an elliptical if you prefer. 

What should you wear?

No, your doctor probably won't make you change into a hospital gown before exercising. You'll be able to complete the test in your own clothing, which means you need to choose your clothing for the day wisely. Wear whatever you typically wear to work out. Just make sure your top is loose enough that your doctor will be able to fit electrodes underneath it.

How long will you have to exercise?

The answer to this question is "it depends." Your doctor will slowly adjust the difficulty of the exercise you are doing until your heart rate "maxes out." That could take two minutes for someone who is suffering from heart disease, or ten minutes for someone in peak condition. It's rare for someone to have to exercise for more than 10 minutes, so hopefully, that gives you some reassurance.

What happens when you're done running or biking?

After giving you a few minutes to rest and recover, your doctor will discuss the results of the stress test with you. They will tell you whether your results suggest your heart is healthy, or whether they suggest the need for additional tests. You will not typically be diagnosed based on the results of a stress test alone, but a stress test is an important first step to determine if other testing is needed.

Hopefully, you now have a better idea of what to expect during a stress test. It's not the most enjoyable experience in the world, but you have nothing to fear. If you have additional questions about stress testing, contact a clinic like Alpert Zales & Castro Pediatric Cardiology.