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.
DVT. 1  D-Dimer blood test- indication of blood clotting times. 2  Duplex Ultrasound- Ultrasound used to visually see clots in the legs. 3  Venogram- gold standard for DVTdiagnosis, contrast dye is injected in a vein and X-Ray pictures are taken to show clots inside the veins.