Medical Surgical Peripheral Vascular Disease #1

Question

A nurse is caring for a client with venous disease in the lower extremities and is ordered radiologic testing. The nurse educates the client on which exam will likely be ordered for lower venous disease?

Answers

  1. Duplex ultrasonography
    • Rationale:

      This answer is correct because duplex ultrasonography is a non-invasive radiologic study that uses high frequency ultrasonic waves to assess the blood flow speed through the vessels in the leg. It also reveals the structure of the leg vessels, including the diameter of vessels. These images can help the health care provider determine if the client has vessel disease.

  2. Echocardiography
    • Rationale:

      This answer is not correct because echocardiography evaluates the heart structures and function. Duplex ultrasonography is a non-invasive radiologic study that uses high frequency ultrasonic waves to assess the blood flow speed through the vessels in the leg. It also reveals the structure of the leg vessels, including the diameter of vessels.

  3. Positron emission tomography (PET)
    • Rationale:

      This answer is not correct because positron emission tomography (PET) uses radioactive dye which helps indicate how your organs and tissues are functioning, not specific to the vessels of the body. Duplex ultrasonography is a non-invasive radiologic study that uses high frequency ultrasonic waves to assess the blood flow speed through the vessels in the leg. It also reveals the structure of the leg vessels, including the diameter of vessels.

  4. Radiography
    • Rationale:

      This answer is not correct because radiography evaluates bone, joints, and soft tissue calcifications, not vessels. Duplex ultrasonography is a non-invasive radiologic study that uses high frequency ultrasonic waves to assess the blood flow speed through the vessels in the leg. It also reveals the structure of the leg vessels, including the diameter of vessels.

Overview

Duplex ultrasonography is a non-invasive radiologic study that uses high frequency ultrasonic waves to assess the blood flow speed through the vessels in the leg. Duplex ultrasonography evaluates the velocity of blood through a vessel and diameter of the vessel, giving the health care provider important information about determination of venous disease.

Explanation

Learning Outcomes

Duplex ultrasonography is a non-invasive radiologic study that uses high frequency ultrasonic waves to assess the blood flow speed through the vessels in the leg. It also reveals the structure of the leg vessels, including the diameter of vessels. A duplex ultrasound uses two modes of ultrasound, the B-mode and doppler mode. The B-mode is a 2-dimensional image of the vessel and the doppler-mode assesses the direction and blood flow speed or velocity through the vessel. These images can help the health care provider determine if the client has vessel disease.

Test Taking Tip

Understanding word parts can help in choosing or eliminating answers. Watch for opportunities to use that knowledge of word parts.

Video Rationale