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.
A PT tests looks at one set of these factors to see how well theyâre working. Itâs often done along with another test, called the partial thromboplastin time (PTT) test, which looks at another set of factors. Together, they give your doctor a more complete picture of what happens in your body when a clot forms.