Red blood cell flow coefficient TK value

This indicator is the indirect red blood cell deformability measured by the viscosity method, which is the comparison of the relative viscosity of the same red blood cell suspension compared to the same shear. Inspection method The viscosity value of whole blood at high shear rate was measured by a rotary or capillary viscometer, and the plasma viscosity was measured by a capillary viscometer. The TK value was calculated by the viscosity equation, which indicates the change of red blood cell deformability. Basic Information Specialist classification: cardiovascular examination classification: blood examination Applicable gender: whether men and women apply fasting: fasting Tips: After 8 pm on the day before the medical examination, you should start fasting for 12 hours, so as not to affect the test results. Normal value 0.9. Clinical significance Abnormal results: Under pathological conditions, it is often higher than 1.0, sometimes as high as 1.3, indicating that the red blood cell deformability is worse, and the red blood cell rigidity index is negatively correlated with the deformability. The higher TK value represents the deterioration of red blood cell deformability. Precautions First, the precautions before blood draw: 1, do not eat too greasy, high-protein food the day before the blood, to avoid heavy drinking. The alcohol content in the blood directly affects the test results. 2. After 8 pm on the day before the medical examination, you should start fasting for 12 hours to avoid affecting the test results. 3, should relax when taking blood, to avoid the contraction of blood vessels caused by fear, increase the difficulty of blood collection. Second, after blood draw should pay attention to: 1. After blood is drawn, local compression is required at the pinhole for 3-5 minutes to stop bleeding. Note: Do not rub, so as not to cause subcutaneous hematoma. 2, the pressing time should be sufficient. There is a difference in clotting time for each person, and some people need a little longer to clotting. Therefore, when the surface of the skin appears to be bleeding, the compression is stopped immediately, and the blood may be infiltrated into the skin due to incomplete hemostasis. Therefore, the compression time is longer to completely stop bleeding. If there is a tendency to bleed, the compression time should be extended. 3, after the blood draw symptoms of fainting such as: dizziness, vertigo, fatigue, etc. should immediately lie down, drink a small amount of syrup, and then undergo a physical examination after the symptoms are relieved. 4. If there is localized congestion, use a warm towel after 24 hours to promote absorption. 3. Please inform the doctor about the recent medication and special physiological changes before the test. Inspection process The examination process: blood is drawn, blood is taken for examination, and venous blood is generally taken, and blood is drawn by a doctor or a nurse. The amount of blood drawn is determined according to the difference of the test content and the number of items. The blood volume is generally 2-20 ml, and the maximum is not more than 50 ml. Then the red blood cell deformability is indirectly measured by the doctor using the viscosity method. Not suitable for the crowd Have a coagulopathy such as hemophilia. Adverse reactions and risks Subcutaneous hemorrhage: subcutaneous hemorrhage due to less than 5 minutes of compression time or blood draw technique.