Hot and cold hemolysis test

The hot and cold hemolysis test is an in vitro test that simulates the onset of a patient. The patient's blood is placed in a refrigerator at 4 ° C for some time, and then placed at room temperature of 37 ° C. The acid production by glucose decomposition accelerates the dissolution of red blood cells and produces hemolysis. Positive in paroxysmal cold hemoglobinuria. The cold reactive antibody (DL antibody) titer can be higher than 140, and some viral infections such as measles, mumps, chickenpox and syphilis can be positive. Basic Information Specialist classification: cardiovascular examination classification: blood examination Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: Normal value: no Above normal: negative: normal. Positive: Positive in paroxysmal cold hemoglobinuria. Tips: Do not eat too greasy, high-protein foods the day before, and avoid heavy drinking. Normal value The result of the test was negative. Clinical significance Abnormal results were found in paroxysmal cold hemoglobinuria. The cold reactive antibody (DL antibody) titer can be higher than 140, and some viral infections such as measles, mumps, chickenpox and syphilis can be positive. People who need to be examined are suspected of having a blood disease. Positive results may be diseases: paroxysmal cold hemoglobinuria, paroxysmal nocturnal hemoglobinuria Inappropriate crowd: None. 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 Generally no taboos. Adverse reactions and risks Infection: Do not touch the dirt after blood collection. Do not wash your hands immediately to avoid infection.