placental lactogen

Placental lactogen is synthesized by placental syncytiotrophoblasts and is a single-chain polypeptide hormone containing no sugar molecules. Placental lactogen can be measured from the blood of pregnant women from 5 weeks of pregnancy. As the pregnancy progresses, the placental lactogen level gradually increases, reaching a peak at 39 to 40 weeks of pregnancy and rapidly decreasing after delivery. Clinical significance of placental lactogen: HPL value increased: twin pregnancy, pregnancy with diabetes, maternal and child blood group incompatibility, expired pregnancy syndrome, giant children; decreased HPL value: hydatidiform mole, threatened abortion, pregnancy-induced hypertension syndrome, intrauterine fetal Stunting, small placenta and small samples. Basic Information Specialist classification: maternity check check classification: blood test Applicable gender: whether women are fasting: fasting Tips: Inappropriate people: women in early pregnancy. Normal value serum 1.8±0.4mg/L (1.4±0.8μg/ml) for 21-22 weeks of pregnancy; 10±3.99mg/L (10±3.99μg/ml) for 37-38 weeks of pregnancy; Between 39 and 40 weeks of pregnancy, 7.03 ± 2.6 mg / L (7.03 ± 2.6 μg / ml); Between 41 and 42 weeks of gestation, 6.6 ± 1.88 mg / L (6.6 ± 1.88 μg / ml); More than 42 weeks of gestation, 6.6 ± 2.09 mg / L (6.6 ± 2.09 μg / ml). Clinical significance Increased HPL values: twin pregnancy, pregnancy with diabetes, maternal and child blood group incompatibility, expired pregnancy syndrome, giant children; Reduced HPL values: hydatidiform mole, threatened abortion, pregnancy-induced hypertension syndrome, intrauterine growth retardation, small placenta and small samples. The people in need of examination are middle and late pregnant women. Low results may be diseases: twin pregnancy, pregnancy-induced hypertension, threatened abortion, high pregnancy outcomes may be diseases: eclampsia, pregnancy with diabetes considerations Before the examination: fasting, taking blood in the morning is better. When checking: Relax your body and actively cooperate with your doctor. Inspection process After obtaining a blood sample from the examiner, it is sent to the Blood Laboratory for testing. Not suitable for the crowd 1. Patients in early pregnancy should not be examined. 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. 4. Risk of infection: If you use an unclean needle, you may be at risk of infection.