Serum cold agglutinin test

The cold agglutination test is to mix human red blood cells and serum to be tested under low temperature conditions of 0 to 4 ° C to observe whether red blood cells are agglutinated. Basic Information Specialist classification: growth and development 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 fast, so as not to affect the detection of indicators such as blood glucose in the second sky. Normal value The potency is below 1:32. Clinical significance The results of the cold agglutinin test are elevated, found in cold agglutinin syndrome, mycoplasmal pneumonia, infectious mononucleosis, malaria, multiple myeloma, lymphoma and the like. In particular, normal human serum may contain a small amount of cold agglutinin, and about 1% of people can reach 1:32 or more. 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 physical examination, fasting should be done to avoid affecting the detection of indicators such as blood glucose in the second sky. 3, should relax when taking blood, to avoid the contraction of blood vessels caused by fear, increase the difficulty of blood collection. Patients with a history of fainting should explain in advance and we will make special arrangements. Second, should pay attention after blood draw 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 blood test. Not suitable for the crowd A patient with hemophilia and severe clotting factor deficiency. Adverse reactions and risks Risk of infection: If you use an unclean needle, you may be at risk of infection.