What to Expect

Common Tests

Common Cardiac Tests

Here is basic information about some of the many tests we do at Seattle Children’s, what you need to do to prepare and how long they take. All the common tests here are painless.

Tests that can usually be performed during a regular clinic visit include:

During the visit, your provider may request additional testing, which may include:

Both Holter and event monitors may be attached during your clinic visit, but monitoring is done at home. Holter and event monitoring require your child to wear a device for monitoring heart rhythm for a specified time period. Holter monitors are worn for 24 to 48 hours. Event monitors are worn for a longer period of time.

Exercise tests must be scheduled separately and may not be done at the same time as your child’s clinic visit.

What should we bring to the test?

You know your child best, so bring things with you that can help them get through the day. This may include:

  • Favorite snacks or drinks
  • Toys
  • Comfort items, such as a blanket or stuffed animal
  • DVD movie, if your child is having an echo. DVD players are available in each echo room and can be used during testing.

When do we get the test results?

You can expect results from an ECG and an echocardiogram within 48 hours. A chest X-ray needs to be interpreted by a radiologist, so it takes longer. Results for other tests usually take more time. Your provider or clinic nurse will give you a timeline for your child’s test results.

Parent tip: Schedule your child's fall sports physical early in the summer so they can get the results in time for school. Sometimes follow-up tests are needed.

Contact Us

Contact the Heart Center at 206-987-2015 for a cardiac referral, a second opinion or more information.