COVID-19 (Coronavirus) Update Learn More

Dear Friends and Neighbors,

CentraCare care givers have been working around the clock for more than 20 months to care for you, your families and friends during COVID. We are committed to caring for every Minnesotan who needs us, and nothing will prevent us from doing so – even during these never-seen-before times.

The challenge of providing this level of care is that our hospital beds are often full. ERs in all of our hospitals are packed. And our clinical teams are exhausted. Early in the pandemic, our community stepped up in amazing ways to help us. We ask that you again join us in fighting this pandemic together.

How can you help?

  • Please get your COVID vaccines and booster shots. They are proven safe and effective in reducing COVID illness, keeping people out of the hospital, and preventing death.
  • If your situation is not an emergency, please use other care options, including:
  • If this is a medical emergency, call 9-1-1, or visit the ER.

Together, we can do this. Thank you for your support.

Ken Holmen, MD
President and CEO

Transcranial Doppler Exam

Purpose of the Test

This ultrasound test is often used to evaluate and diagnose a small hole between the chambers of the heart.

Patient Instructions

Medicine

  • Take prescribed medicines unless told not to by your doctor.

Clothing

  • Wear normal street clothes.

The Test

  • Once in the test room, you will lie down on a table or bed.
  • We will start an intravenous (IV) line.
  • We will place a probe on the side of your head in front of the ear. You may feel slight pressure when the probe is placed firmly against the skin.
  • We will place several injections of sterile water into the IV while recording the blood flow in the cerebral arteries.
  • When done we give the information to the doctor for review.
  • The test takes about 30 to 45 minutes.

If you have any questions, please call CentraCare Heart & Vascular Center at 320-656-7020 or 800-448-3455.