Pratt test

The Pratt test is an auxiliary test used to check that the venous blood vessels are normal. Normal human venous valve can prevent venous stasis, varicose veins, etc. caused by blood reflux. If the venous valve function is defective, when the standing or proximal soft tissue is squeezed, the blood in the vein will flow back to the distal end. In this test, the soft tissue of the proximal heart was squeezed to observe whether the distal vein was filled or not, and the functional state of the venous valve was determined. Through this examination, the corresponding symptoms can be judged. Basic Information Specialist Category: Cardiovascular Examination Category: Other Examinations Applicable gender: whether men and women apply fasting: not fasting Tips: Keeping normal is diet and sleep. Normal value There is no filling of the veins between the two bandages. Clinical significance Abnormal results: This test is mainly used to judge the function of the venous valve of the lower extremity. The varicose veins between the two bandages are filled, indicating that the venous valve is insufficiency, causing blood to accumulate in the cutaneous system. The crowd of saphenous veins that need to be examined. Precautions Taboo before the test: Keeping normal is diet and sleep. Requirements for inspection: 1. The elastic bandage pressure should not be too large, especially in soft tissue, so as not to cause false positives caused by compression of deep veins. 2. The original normal vein may have segmental filling, which is a normal phenomenon. Inspection process 1. The patient takes the supine position, reveals the lower limbs, raises the affected limb, and causes the varicose veins to shrink. 2. Attach a rubber band to the upper third of the thigh to compress the proximal end of the great saphenous vein. 3. Start the elastic bandage from the toe and turn it up and down until it is 5cm-10cm below the rubber band. 4. The patient is standing and observing the varicose vein filling between the rubber band and the elastic bandage. 5. Wrap the second bandage from the rubber band and wrap it around the circle. The first elastic bandage is removed circle by circle, and the distance between the two is always 5cm-10cm. At the same time, pay attention to observe the filling of the varicose veins between the two bandages until the first elastic bandage is completely removed. Not suitable for the crowd Inappropriate crowd: 1. Varicose veins combined with infection and ulcers. 2. Lower limb skin infections and injuries. Not suitable for this check.