Your provider will give you specific instructions on how to prepare. Substances such as caffeine, medications, food and nicotine can interfere with the test. In general, you should:
An exercise stress echo typically follows this process:
After the final echocardiogram, you return to the treadmill or bike and walk or pedal slowly to cool down. Once your blood pressure and heart rate return to normal, you can go home.
This is the most common and basic heart stress test. It involves walking on a treadmill or riding a stationary bicycle. A well-trained exercise physiologist usually tailors the speed and elevation of the treadmill to your ability to walk and your overall fitness. If you can’t exercise, you receive medications that make your heart pump harder and faster or dilate the artery supplying blood to your heart (coronary arteries). An electrocardiogram (EKG) captures your heart’s electrical activity. Exercise stress tests check for signs of coronary artery disease.
If there are no contraindications, exercise stress tests are safe. Very few people experience complications. Trained healthcare providers, typically an exercise physiologist and a cardiologist, are present during your test in the rare event that you have a complication. They assess your performance, data and symptoms throughout the tests and immediately provide emergency treatment if it’s needed. You also have the option of stopping the stress test at any time if you become anxious or uncomfortable.
To prepare, you should:
Here’s what to expect during an exercise stress test:
A sonographer will perform the transthoracic (external) echocardiogram. Sonographers are healthcare professionals who specialize in using ultrasound devices to produce images and videos for diagnostic purposes.
During the test, the person receiving the echocardiogram will remove their clothes from the waist up. They can wear a hospital gown if they wish to cover themselves during the exam.
The sonographer will then instruct the person to lie on a table, on either their back or their left side. They may inject a saline solution or dye into the person’s veins, which makes the heart appear more defined on the echocardiogram.
The exact procedure depends on the type of echocardiogram. For instance:
If a doctor ordered a transthoracic echocardiogram, the sonographer will apply a gel to the chest. The sonographer will then move the transducer around the chest to get different images of the heart.
During the exam, the sonographer may ask someone to change positions or take or hold a deep breath. They might press the transducer into the chest to get a better picture of the heart.
Most people can return to their regular activities after having a transthoracic echocardiogram.
Your healthcare provider will tell you how to prepare. Some general tips include:
Preparation also involves knowing in advance what you need to avoid. During your 24-hour period, you shouldn’t:
You are set up with a Holter monitor during a scheduled appointment at a medical office or clinic. Unless you're told differently, plan to bathe before this appointment. Most monitors can't be removed and must be kept dry once monitoring begins.
Sticky patches with sensors, called electrodes, are placed on your chest. These sensors detect the heartbeat. They're about the size of a silver dollar. If you have hair on your chest, some of it may be shaved to make sure the electrodes stick.
Wires attached to the electrodes connect to the Holter monitor recording device. The device is about the size of a deck of cards.
Once your Holter monitor is fitted and you've received instructions on how to wear it, you can return to everyday activities.
A Holter monitor is typically worn for 1 to 2 days. During that time, the device records all of the heartbeats. Holter monitoring is painless. The electrodes and wires can be hidden under clothing. The device is worn on a belt or attached to a strap.
While you wear a Holter monitor, you can do most other daily activities unless you have instructions to avoid certain things. You may be given a form to record your activities and any symptoms. It's particularly important to note if and when you have any of the following symptoms:
Once your monitoring period is over, you'll return the device. If you were asked to keep a record of symptoms that you had while wearing the device, the Holter monitor's data will be compared with your notes. This can help your care team make an accurate diagnosis.
Your healthcare professional will review the Holter monitor test results and discuss them with you. Information from Holter monitor testing can show if you have a heart condition and if any heart medicines you currently take are or aren't working.
If you didn't have any irregular heartbeats while you wore the monitor, you may need to wear a wireless Holter monitor or an event recorder. These devices can be worn longer than a standard Holter monitor. Event recorders are similar to Holter monitors and generally require you to push a button when you feel symptoms. There are several different types of event recorders.