Fetal Alpha Ball (a-FA/AFP)

A fetal fetus, alpha-fetoprotein, or AFP, is a special protein contained in the blood of the embryo during the embryonic period. After the birth of the fetus, the serum AFP concentration decreases, and falls to normal within a few months to one year. Normal adult liver cells lose the ability to synthesize AFP, so the serum content is extremely small (generally <20μg/L), pregnancy, chronic hepatitis, liver It can also be elevated in the case of hardening and partial tumors. Basic Information Specialist classification: growth and development check classification: immunological examination Applicable gender: whether men and women apply fasting: fasting Tips: Do not take all liver disease drugs before the test, and can not eat irritating food. Normal value Alpha-fetoprotein (AFP) normal reference serum 0--25ug/L. After 12 weeks of gestation, serum AFP began to increase, 20-100 μg/L at 20 weeks of gestation, 44-146 μg/L at 22 weeks, 52-178 μg/L at 24 weeks, and peaked at 28-32 weeks. Below 400ug/L, it returns to normal 3 weeks after delivery. If the AFP in the serum of pregnant women is abnormally elevated, the possibility of fetal neural tube defect malformation should be considered. Clinical significance Abnormal results: Fetal protein is a glycoprotein, the English abbreviation AFP. Under normal circumstances, this protein is mainly derived from embryonic liver cells. After about two weeks of birth, alpha-fetoprotein disappears from the blood, so the alpha-fetoprotein content in normal human serum is less than 20 micrograms per liter. When hepatocytes become cancerous, they restore the function of producing this protein, and as the disease progresses, its serum content will increase sharply. Fetal protein becomes a specific clinical indicator for the diagnosis of primary liver cancer. . People who need to be examined: ordinary hepatitis B patients, pregnant women, people with liver cancer in the family should be tested for alpha-fetoprotein (AFP) once every six months. High results may be diseases: liver cancer, elderly patients with primary liver cancer, primary liver cancer, hepatitis B precautions Pre-examination taboo: Do ​​not take all liver disease medications, and do not eat irritating foods. Requirements for inspection: Actively cooperate with the B-ultrasound examinations required by the doctor. Inspection process Fetal protein is a glycoprotein, acronym AFP. Under normal circumstances, this protein is mainly derived from embryonic liver cells. After about two weeks of birth, alpha-fetoprotein disappears from the blood, so the alpha-fetoprotein content in normal human serum is less than 20 micrograms per liter. Not suitable for the crowd Inappropriate crowd: just received a blood transfusion. Adverse reactions and risks It is a safe check and is harmless to the body.