Test Instructions


What is an Arterial Lower Extremity Duplex Ultrasound?

An arterial duplex ultrasound uses sound waves to create a color map of the arteries in your leg(s) to identify narrowing of your vessels that may be causing leg pain when walking, resting leg pain, buttock/hip pain, foot, ankle, heel or toe ulcers, or skin discoloration.

What will the test show?

This test will show the arteries in your legs, evaluating the size and shape of arteries, blood flow through the arteries and any plaque or obstructions within the arteries that may create blood flow blockages.

How is test performed?

The test is performed using a hand held probe and skin gel, which passes over the entire leg down to the ankle, creating an image.  You will be asked to lie flat on your back for 40-45 minutes with the leg externally rotated outward with knee slightly bent.

How do I prepare for test?

  • Drink plenty of water to stay hydrated.
  • Wear loose easily removable bottoms that will allow access to the groin to ankle of each leg.
  • DO NOT WEAR TED/COMPRESSION HOSE or any articles difficult to remove or restricting.

Printable PDF: Arterial Ultrsound



What is a Renal Artery Ultrasound?

Renal artery ultrasound is a test that shows the renal arteries, the arteries that carry blood to the kidney. These arteries may narrow or become blocked and this may result in kidney failure or high blood pressure (hypertension). Ultrasound waves are used to make an image of the artery. The speed of blood flow through the arteries is measured and determines the degree of narrowing of the artery. Imaging of the renal arteries can be extremely difficult and this test most often is performed in the morning on an empty stomach.

What will the test show?

This is a diagnostic test that produces images of kidney.  This test will evaluate the size and flow of blood in the arteries, tissues and any obstructions within the arteries that may create blood flow blockages.

How is test performed?

You will be asked to lie down on an examination table. The technician will place a clear gel on your abdomen. The gel allows the transducer (a device that both puts out and detects ultrasound signals) to slide around easily on your skin. When the transducer is placed against the skin, an image of the artery is shown on a video screen. The renal arteries are identified and a measurement will be made of the speed of blood flow through the artery.  The exam usually takes 40-60 minutes to complete.

How do I prepare for test?

  • Wear loose fitting clothes that will allow easy access to abdomen-navel.
  • 24 hours before test drink 8-10 ounces of water.
  • Do not eat or drink 6 hours immediately before test.

Printable PDF: Renal Ultrasound




What is a Venous Lower Extremity Doppler ultrasound?

This test uses ultrasound to examine the blood flow in the major veins in the legs to ensure that blood is being returned to your heart properly.  We will verify the valves inside the veins are opening and closing efficiently and that there are no blood clots in the veins.

We will also take images of your veins as well as to measure the speed and direction of the blood in the veins.

How the Test is Performed?

A water-soluble gel is placed on a handheld device called a transducer, which directs the high-frequency sound waves to the veins being tested.  The exam will begin taking images at the hip/groin area and scan all the way down the leg to the ankle.

How to Prepare for the Test

  • You will need to remove clothing from the leg(s) being examined.
  • There are no dietary restrictions.
  • You should take your medication as scheduled.
  • Being well hydrated is an important factor in the test.
  • The evening before the test, be sure to drink plenty of water, three 8-ounce glasses are ideal.
  • The day of the test, while waiting, you will be asked to stand in the waiting room or walk on a treadmill prior to beginning the exam.

Printable PDF: Venous Ultrasound

Carolina Heart & Leg Center, PA
3637 Cape Center Drive
Fayetteville, NC  28304

website design by Biz Tools One