red blood cell aggregation

Erythrocytes form aggregates, which increase blood viscosity, and the degree of increase is positively correlated with the degree of red blood cell aggregation. Therefore, the aggregation of red blood cells is increased, the degree of aggregation is increased, and the viscosity of blood is increased, and other blood flows may also be accompanied. Changes in the index of change lead to increased blood resistance, decreased blood flow, and even block some capillaries and tiny veins, resulting in insufficient circulating blood perfusion, resulting in ischemia of tissues or organs, hypoxia, and increased acid metabolites in tissues. , causing acidosis, so that red blood cell aggregation is further enhanced, deformability is reduced, and certain blood rheology indicators are correspondingly changed to form a vicious circle. Basic Information Specialist classification: cardiovascular examination classification: blood examination Applicable gender: whether men and women apply fasting: fasting Tips: After taking blood, you need to press it at the pinhole for 3-5 minutes to stop bleeding. Note: Do not rub, so as not to cause subcutaneous hematoma. Normal value The viscosity measurement method is 1s-111.28 to 17.28 mPa·s. Clinical significance Increase thrombotic diseases, see hypertension, coronary heart disease, stroke, pulmonary heart disease, diabetes, malignant tumors, peripheral vascular disease, shock, burns, etc. Precautions Before inspection: 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. After inspection: 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. 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 usually 2-20 ml, and the maximum is not more than 50 ml, and then the doctor's capillary viscometer method is used for calculation and examination. Not suitable for the crowd Have a coagulopathy such as hemophilia. Adverse reactions and risks Bleeding: After blood collection, use sterile cotton lump or other disinfecting hemostatic articles to tighten the needle to stop bleeding, especially for patients with coagulopathy should be given sufficient time to avoid bleeding.

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