Methemoglobin reduction test

The activity of glucose-6-phosphate dehydrogenase can be indirectly reflected by measuring the rate of reduction of methemoglobin. Can be used for the auxiliary diagnosis of glucose-6-phosphate dehydrogenase deficiency. Basic Information Specialist classification: growth and development examination classification: blood examination Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: Normal value: no Above normal: negative: Negative when normal. Positive: Positive is seen in G6PD deficiency. Tips: Do not eat too greasy, high-protein foods the day before the blood draw, avoid heavy drinking. The alcohol content in the blood directly affects the test results. Normal value Qualitative: negative. Normal people: the reduction rate is ≧75%, and the cord blood is 77%. Clinical significance Abnormal results: Reduce the incidence of glucose-6-phosphate dehydrogenase deficiency, faba bean disease and primaquine type drug hemolytic anemia and other patients. The reduction of positive or methemoglobin reduction rate is seen in the G6PD deficiency and can be used as a screening test for the disease. The people who need to be examined have people with a family history of faba disease, and those with anemia. Positive results may be diseases: hemolytic anemia in children, hemolytic anemia, prevalence of faba bean disease 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 Inspection method: draw blood. Not suitable for the crowd Have a coagulopathy such as hemophilia. Adverse reactions and risks Discomfort: There may be pain, swelling, tenderness, and visible subcutaneous ecchymosis at the puncture site.