Platelet factor 3 function test

Platelet factor 3 function test detects platelet factor 3 (PF3) and detects its functionality. Platelet factor 3 (PF3) is a membrane surface phospholipid formed during platelet activation and is an important component of human coagulation. It is a fixed site of coagulation factor V, which accelerates the production of thromboplastin and promotes the coagulation process. Basic Information Specialist classification: growth and development examination classification: blood examination Applicable gender: whether men and women apply fasting: fasting Tips: Try to reduce the amount of exercise before blood draw, do not eat food, keep fasting, you can drink a small amount of water, the amount of blood is determined according to the different content of the test and the number of items, generally around 2 ~ 20ml, the most Will not exceed 50ml. Normal value Clotting time: 0-5 seconds. Clinical significance Abnormal results: Increased clotting time is seen in the consumption of saturated fatty acids, type II hyperlipidemia, transient ischemic attack, myocardial infarction, diabetes with blood vessels and atherosclerosis. Reduced in congenital PF3 deficiency, thrombocytopenia, giant platelet syndrome, platelet disease, type I glycogen accumulation, uremia, cirrhosis, essential thrombocythemia, polycythemia vera, acute and chronic granulocytes Leukemia, myelofibrosis, multiple myeloma, macroglobulinemia, systemic lupus erythematosus, congenital heart disease, aplastic anemia, thrombocytopenic purpura and pernicious anemia. People who need to be examined: people with platelet blood diseases and leukemia symptoms. Low results may be diseases: abnormal platelet procoagulant activity results may be high disease: pediatric platelet release dysfunction disease, pediatric thrombocytopenia, toxic purpura precautions Taboo before the test: Do not eat too greasy, high-protein foods the day before the test, to avoid heavy drinking. The alcohol content in the blood directly affects the test results. After 8 pm on the day before the medical examination, you should fast. Requirements for examination: When taking blood, you should relax your mind to avoid the contraction of blood vessels caused by fear and increase the difficulty of blood collection. Inspection process The peripheral blood mainly has ear lobe blood and fingertips to take blood. The baby can take blood from the heel. The earlobe has a lighter blood pressure, but the blood volume is less, especially those with smaller earlobes are more difficult to take blood. The blood pressure of the fingertips is more obvious, but the blood collection is more, especially for the blood routine test, the stable measurement results can be obtained. The skin should be cleaned before blood collection. Do not take blood immediately after entering the room in the cold outdoor winter. After the body is warm, especially the ear drops and hands should be warmed up. Do not use hot water to heat your hands before taking blood. Keep your fingers dry. If your fingertips have wounds, paronychia, redness or skin disease, avoid using this finger. Fingertip blood collection generally uses the ring finger, because the ring finger will not affect the daily function of the hand after piercing, of course, the middle finger or index finger can also be used, no special difference. When collecting blood in the ear, remove the earrings and other hanging ornaments on the earlobe. Do not hang up immediately after blood collection. After blood collection, apply sterile cotton blocks or other disinfecting hemostatic articles to pinch the needle and puncture the area. Do not touch the dirt. Do not wash your hands immediately. Not suitable for the crowd 1. Patients who have taken contraceptives, thyroid hormones, steroid hormones, etc., may affect the results of the examination and prohibit patients who have recently taken the drug history. 2, special diseases: patients with hematopoietic function to reduce disease, such as leukemia, various anemia, myelodysplastic syndrome, etc., unless the examination is essential, try to draw less blood. Adverse reactions and risks 1, subcutaneous hemorrhage: due to pressing time less than 5 minutes or blood draw technology is not enough, etc. can cause subcutaneous bleeding. 2, discomfort: the puncture site may appear pain, swelling, tenderness, subcutaneous ecchymosis visible to the naked eye. 3, dizzy or fainting: in the blood draw, due to emotional overstress, fear, reflex caused by vagus nerve excitement, blood pressure decreased, etc. caused by insufficient blood supply to the brain caused by fainting or dizziness. 4. Risk of infection: If you use an unclean needle, you may be at risk of infection.