Carotid Duplex Scan

A Carotid Duplex Scan, also known as a Carotid Ultrasound, uses sound waves to produce images of how well and how much blood is flowing through the carotid and vertebral arteries in your neck, which supply blood to your head and brain. The ultrasound images are much like a movie and allow your doctor to see and hear the blood flow, and help Queen’s Heart specialists to determine if there are any blockages or narrowings which may reduce blood flow to your head and brain.

What to Expect During the Test

This test takes approximately 45 minutes to one hour. This test is painless and involves little risk. Test results will be sent to your physician who will discuss them with you.

After the Test

Should you experience chest pain or pressure, shortness of breath, nausea, pain into your jaw or back, or dizziness, please call your doctor and 911.

Preparing for Your Test

  • Transportation: No special preparations are required for this test. You will be able to drive home after this test.
  • Food and Drink: You may eat before this test, however, avoid eating a large meal as it may make you feel uncomfortable or full during the testing.
  • Medications: Please consult with your physician if you should hold any of your medications before taking this test.
  • Clothing: Wear a shirt that can be easily removed while you wear your skirt or pants. One-piece clothing and dresses are not recommended. A hospital pajama top will be provided.
  • Check-in Time: Please arrive 15 minutes prior to your scheduled appointment.

Appointment and Pre-Registration Required

Call the Queen's Pre-Registration Department at 808-691-4770 three days before your scheduled test to update your registration. Please have your medical insurance cards ready for verification.