Today's tests still work by measuring HCG.

今天的孕检依旧通过检测 HCG 进行。

If there's no HCG, the wave of urine and enzymes just passes on by.

如果没有 HCG，尿液和酶 就这样流过去了。

Okay. Um..." Are my HCG levels doubling every 48 hours? "

还有… … “我的促性腺激素每48小时就翻一番吗？”

For instance, false negatives can occur if concentrations of HCG aren't high enough for detection.

比如说，错误的阴性反应可能会发生如果 HCG 没有足够多以至能被检测出来。

When the wave hits the first zone, the reaction zone, Y-shaped proteins called antibodies will grab onto any HCG.

当它到达反应区，Y 字形状的蛋白质也就是抗体会抓住任何识别到的 HCG。

As the pregnancy progresses, HCG supports the formation of the placenta, which transfers nutrients from mother to fetus.

随着怀孕的过程，HCG 能够帮助形成胎盘，胎盘能够将母亲体内的营养物质传送给胎儿。

These changes can worsen morning sickness, which is caused in part by the hormone HCG — and can also happen at other times of day.

这些变化会加剧晨间孕吐，这一部分是由 HCG 激素引起——也可能发生在一天中的其他时间。

They use tiny strips of fabric infused with antibodies that detect the HCG hormone and basically have taken the guesswork out of everything.

他们将可检测 HCG 激素的抗体注入小型纺织条内，基本上能保证准确性。

Monoclonal antibodies on the pregnancy test stick bind to the HCG hormone found in the urine of pregnant women causing a colour change.

验孕棒上的单克隆抗体与孕妇尿液中发现的 HCG 激素结合，导致颜色变化。

Secured to this zone are more Y-shaped antibodies that will also stick to HCG on one of its five binding sites.

这个区域有更多的 Y 字抗体，在它的五个面都会黏住 HCG。