serum folic acid

One of the Folicacid vitamin B complexes, which is equivalent to pteroylglutamic acid (PGA), was extracted from spinach leaves by Mitchell (HKMitchell, 1941) and was named folic acid. It has the effect of promoting the maturation of young cells in the bone marrow. The lack of folic acid in humans can cause macrocytic anemia and leukopenia, which is especially important for pregnant women. Serum folic acid assays are primarily used for the etiological diagnosis of cell anemia. Basic Information Specialist classification: cardiovascular examination classification: biochemical examination Applicable gender: whether men and women apply fasting: not fasting Analysis results: Below normal: Common in malnutrition, anemia, liver disease and so on. Normal value: Newborn: 15.9-72.5nmol/L Adult: 4.5-34.0nmol/L >60 years old: 4.5-27.2nmol/L Above normal: Common in intestinal blindness syndrome, pernicious anemia and other diseases. negative: Positive: Tips: The level of folic acid in the blood changes with the intake of food, so the patient should try to reduce the amount of exercise before taking blood, do not eat food, keep fasting. Normal value Radioimmunoassay: Newborns ranged from 15.9 to 72.5 nmol/L. Adults 4.5 to 34.0 nmol/L. >60 years old 4.5 to 27.2nmol / L. Note that each laboratory has different reference values ​​depending on its own monitoring method. Clinical significance 1, the rise can be seen in (1) Intestinal blindness syndrome. (2) Pernicious anemia. (3) Long-term vegetarians. 2, the reduction can be seen in (1) megaloblastic anemia, hemolytic anemia. (2) Hyperthyroidism. (3) Malnutrition, chronic diarrhea, malabsorption. (4) Alcoholism. (5) Severe skin disease. (6) malignant tumors. (7) Myeloproliferative diseases. (8) Liver disease. (9) Normal pregnancy. Low results may be diseases: folic acid deficiency in children, folic acid deficiency, megaloblastic anemia in pregnancy, anemia caused by folic acid deficiency, folic acid deficiency neuropathy, pediatric celiac disease, pediatric sugar malabsorption, megaloblastic anemia in the elderly, Children's megaloblastic anemia considerations 1. The level of folic acid in the blood changes with the intake of food, so patients need to take blood tests on an empty stomach. Those who take antibiotics or contraceptives should stop taking the drug for 1 week before testing. Drinking alcohol is prohibited before blood test. 2, elevated serum folic acid can also be seen in long-term vegetarians; reduction can also be seen in normal pregnancy. Inspection process Subjects were venously collected and assayed in time for serum separation. 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.