Pathology: Blood or qi deficiency. This is seen in cases of deficiencies and failure of Qi and blood. It can also be seen in disharmonies of the even emotions, weakness in Yang Qi, internal damage to jing, and penetration of dampness.
Testing for venous blood clots. Venous blood clots may be detected in a variety of ways, though ultrasound is most commonly used. Occasionally, the patient's size and shape limit the ability for ultrasound to provide a definitive answer. Venography is an alternative test to look for a clot.
make a picture of the vein and to show if blood is flowing in the vein or not. No blood movement and a large vein that showSVT is present. A venogram involves placing a needle in a vein further out from the suspected clot and injecting agents which can be seen by X-ray to show where the clot is located. This is rarely used in current medical