communicating vein valve function test

The traffic venous valve function test (Pratt test) is an auxiliary test method for checking whether the venous blood vessels are normal. The traffic between the deep and shallow veins is incompatible with the function of the valve. In the standing position, the blood of the deep vein reversibly flows into the superficial vein, filling the superficial vein. This test was performed after emptying the superficial veins and blocking the blood flow at the proximal end, and then observing the superficial vein filling to determine the functional state of the valve. Through this examination, the corresponding symptoms can be judged. Basic Information Specialist Category: Inspection Category: Other Inspections Applicable gender: whether men and women apply fasting: not fasting Analysis results: Below normal: Normal value: no Above normal: negative: It is a normal result that the superficial vein does not produce significant filling within 30 s after standing. Positive: Determine the function of the valve in the deep and shallow veins of the lower extremity. In this test, the traffic function of the valve is normal, and the valve function of the positive valve is incomplete. According to the test results, different surgical methods can be selected. Tips: Maintain a normal diet and sleep before check-up. Normal value It is a normal result that the superficial vein does not produce significant filling within 30 s after standing. Clinical significance Abnormal results: to determine the function of the valve in the deep and shallow veins of the lower extremity. In this test, the traffic function of the valve is normal, and the valve function of the positive valve is incomplete. According to the test results, different surgical methods can be selected. The people who need to be examined: the saphenous veins are treated with surgery. Positive results may be diseases: lower extremity arteriosclerosis obliterans, lower extremity venous valve insufficiency, lower extremity varicose veins, varicose veins, simple lower extremity varicose veins, stasis subcutaneous sclerosis precautions Taboo before the test: maintain a normal diet and sleep. Requirements for examination: the pressure is moderate when the tourniquet or finger is pressed, so as to block the reflux of the great saphenous vein, and it is not suitable for the deep vein and arterial blood flow. Inspection process 1. The patient is supine and exposes the lower limbs. Raise the affected limb and allow the superficial venous blood to flow back until it is completely emptied. 2. Place a tourniquet under the groin or press the thumb below the fossa to prevent the saphenous vein. Until the end of the test. 3. The patient is standing and observing the filling of the superficial vein. Not suitable for the crowd Inappropriate crowd: varicose veins have broken. Adverse reactions and risks Nothing.