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.
New Approach to Remove Blood Clots. Catheter-based system removes clots without open heart surgery. When a large blood clot was discovered attached to the end of a catheter inside the right atrial chamber of a patientâs heart, doctors faced a daunting challenge.