On average, these patients had hearts pumping out 30% of the optimal volume of blood.

这些患者的心输出量平均为全身血液量的30%。

That's when the ventricles relax, to receive the next volume of blood from the atria.

这是心室放松的时候，从心房接收下一批血液发出的声音。

So much so that the volume of blood being pumped with each heartbeat can return to normal levels.

这样可使每次心跳带动的血液回到正常水平。

They also reduce the volume of blood by 30 to 40 percent and they can help with period diarrhea.

它们还可以减少 30% 到 40% 的血容量，并且可以帮助缓解经期腹泻。

The volume of blood in the ventricles at the end of diastole is referred to as the end-diastolic volume.

舒张末期心室中的血液量称为舒张末期血容量。

Another term for this is having a reduced " preload" which is the volume of blood that's in the ventricle right before the ventricular muscle contracts.

形容这一现象的术语是为心脏前负荷减少，指的是心室在心肌收缩前的血量。

Cardiac output equals the number of heartbeats per minute times the volume of blood pumped out of the ventricles with each heartbeat.

心输出量等于每分钟心跳次数乘以每次心跳从心室泵出的血液量。

And when blood pressure gets too high, your kidneys will try to reduce the volume of blood, by getting rid of any extra water. Basically, they make you pee.

当血压过高时，你的肾脏会试图通过排出任何多余的水分来减少血容量。基本上，它们会让你想撒尿。

When we talk about blood flow, what we're talking about is the volume of blood flowing through any given vessel, or through the circulatory system as a whole, per minute.

当我们谈论血液流动时，我们谈论的是每分钟流过任何给定血管或整个循环系统的血液量。

Now, acute kidney injury can cause a low glomerular filtration rate, which is the volume of blood filtered through the kidney over a period of time, and this can lead to oliguria and hyperkalemia.

严重的肾损伤可以降低肾小球滤过率，即单位时间内肾脏过滤的血液量，这可以导致少尿和高钾血症。

Maintaining the right volume of blood is important, and we’ve talked before about how a lot of so-called " doping" in professional sports actually involves tinkering with your blood volume.

保持适当的血容量很重要，我们之前已经讨论过很多所谓的职业运动中的“兴奋剂” 实际上涉及修补您的血容量。