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.
Having blood tests. A person will have a test to show how well his or her blood clots. A person will have a test to show how well his or her blood clots. A technician or nurse draws a blood sample during an office visit or at a commercial facility and sends the sample to a lab for analysis.