B-One can tell us?

Super B during pregnancy is a very do people expect things to take this opportunity to see the baby, knowing he looks good? Just got the results, expectant mothers has violated the difficult, and the values were above the letters represent? Why is not the same as the contents of each large B?

* Biparietal diameter (BDP): refers to the fetal head at the top of both sides of the parietal bone of the largest distance, also known as "head of a large diameter."

Full-term pregnancy should be 9.3 cm or more. As a general rule, pregnant 5 months later in the month of pregnancy consistent with the basic values, that is, 28 weeks pregnant when the BPD is about 7.0 cm, 32 weeks pregnant and about 8.0 cm, and so on. After 32 weeks pregnant, with an average growth of about 0.2 cm per week is normal. Can be used to calculate the value of fetal gestational age, estimated weight.

* Head circumference (HC): bilateral parietal bone in the ring plane to do the length of the first week. Numerical understanding of BPD with fetal head shape, to determine the head of the developmental state, as well as the estimated weight of one of the important parameters.

* Femur length (FL): Fetal femur, the thigh bone between the knee length, that is also known as "femur length, femur length."

It's normal with the corresponding month of pregnancy difference between BPD value of about 2 to 3 cm, such as BPD of 9.3 cm, femur length should be 7.3 cm; BPD of 8.9 cm, femur length should be 6.9 cm and so on.

* Abdominal circumference (AC): the length of a week stomach.

* Placenta (PL): Location is the description of the location of the placenta in the uterine cavity, normal placenta in the uterus should be attached to any part of the upper half, full-term placenta thickness of 2.5 to 5 cm.

* Umbilical artery ratio (S / D): umbilical artery systolic and diastolic blood pressure ratio of umbilical artery by measuring maternal placental blood vessels to understand the situation.

Measured 20 weeks after the general S / D values meaningful. General, 20 weeks pregnant S / D larger than 3.0, the ratio after 28 weeks gestation decreased gradually, often 3.0 or less.

* Fetal movement: B exceeding the 8 to 9 weeks pregnant fetal movement can be seen. There, strong as normal, no, weak performance of the fetus may be in sleep.

* Fetal heart: B over 7 to 8 weeks of gestation, the pregnancy can be seen 6 weeks fetal heart beat. The frequency of normal fetal heart beat per minute between 120 to 160.
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