Antenatal blood biochemical screening

What is the role of prenatal blood routine screening? Prenatal biochemical examination is very necessary and very good for pregnant women and children. If problems can be discovered and treated in time, it can bring great benefits to pregnant women. Generally, the biochemical examination will include the examination of liver and kidney function, blood sugar level, electrolyte solution, myocardial enzyme and so on. Through these tests, the detailed physical condition of the patient can be effectively discovered. Once any abnormal reaction occurs, effective treatment can be obtained in time to avoid accidents during the delivery process.

The prenatal blood screening is a blood test, and the full set of biochemical tests includes: liver function test (total protein, human albumin, blood protein, albumin-globulin ratio, total bilirubin, immediate and indirect bilirubin, transaminase); blood sugar (total cholesterol, triglycerides, high-density leukemia and low-density leukemia, apolipoprotein); blood sugar; kidney function (creatinine, urea nitrogen); blood uric acid; lactate dehydrogenase; creatine creatinine, etc.

Prenatal serological screening refers to extracting a small amount of venous blood from pregnant women, measuring the biochemical indicators in blood cells, and combining factors such as the age and weight of the pregnant women to basically assess the risk of the fetus suffering from Down syndrome (trisomy 21), trisomy 18 and open neural tube defects. Because everyone is more concerned about Down syndrome with trisomy 21, it is commonly referred to as "Down screening."

Down syndrome

Also known as trisomy 21 syndrome and congenital idiocy, it is a birth defect caused by trisomy of sex chromosome 21 in the fetus and is also the most common genetic disease causing intellectual disability.

Trisomy 18

It is a birth defect caused by trisomy of chromosome 18 in the fetus, often accompanied by various malformations such as congenital heart disease, and is a fatal disease.

Neural tube defects

It is a type of birth defect of the central nervous system and a multi-genetic genetic disease, including anencephaly, spina bifida, hydrocephalus, etc. It often causes intrauterine fetal death or postnatal death. Those who survive are generally accompanied by delayed IQ and language development and multiple malformations.

Most of these conditions are not inherited through familial genes. Therefore, every pregnant woman has the possibility of giving birth to a baby with such congenital defects. Once the patient is born, he or she cannot be cured. At present, the only effective way to reduce the occurrence of the above-mentioned birth defects is to carry out prenatal diagnosis and prenatal examinations to prevent the birth of patients with these diseases.