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.
How is a blood transfusion reaction diagnosed? 1  Blood tests: Your blood is tested for signs of destroyed red blood cells. 2  Urine tests: Your urine is tested for blood and for signs of kidney failure.  ECG test: Sticky pads are placed on your skin to record your heart's electrical activity if you have chest pain.