SECTION 2: DIAGNOSIS OF LATE PREGNANCY

1. Diagnosis

1.1 Clinical Manifestations

1.1.1 Symptoms: ①The history of early pregnancy. ②With the increasing size of the abdomen. ③Appreciation of fetal movement at 16～20 weeks.

1.1.2 Signs: ①Fetal movement （3-5 times per hour）.②Fetus:Fetus conceptus can be palpated per abdomen after 20 weeks. The fetal head, back, buttocks, limbs can be clinically identified after 24 weeks. ③Fetal heart ate （FHR）: 110-160 times per minute: can be heard.

1.2 Auxiliary Examination

1.2.1 Ultrasound examination: Ultrasound examination provides information about fetal growth and development.①The number and size. ②Fetal anomalies or not. ③Fetal maturity. ④Fetal heart sounds. ⑤Fetal position. ⑥The degree of placental maturity. ⑦Amniotic fluid. ⑧Umbilical cord.

1.2.2 Fetal electrocardiogram: helps further diagnosis of abnormal fetal heart.

（罗飞）