Question

Which of the following statements is (are) true regarding lower-extremity venography ?

1. The patient is often examined in the semierect position
2. Contrast medium is injected thought a vein in the foot
3. Imaging begins at the hip and proceeds inferiorly

Answer 1

In lower-extremity venography, the patient is often positioned semierect, contrast medium is injected through a vein in the foot, and imaging generally begins at the hip and moves inferiorly, assessing major veins like the femoral vein and small saphenous vein.

Step-by-step explanation:

In lower-extremity venography, the following statements can be evaluated:

1. The patient is often examined in a semierect position to facilitate the distribution of contrast medium due to gravity.
2. Contrast medium is indeed injected through a vein in the foot.
3. Imaging typically begins proximally at the hip and proceeds inferiorly to ensure complete visualization of the venous system.

The process typically involves the visual assessment of the major veins of the lower limbs, such as the femoral vein, which drains the upper leg and the small saphenous vein, which drains blood from the superficial regions of the lower leg and foot. These are critical to understanding venous flow and any potential pathological findings during venography.