Over time, a serious RSV infection can lead to hypoxemia which is a decreased oxygen content in the blood.

随着时间推移，严重的RSV感染可导致低氧血症，即血液中氧气含量较低。

People with chronic bronchitis also often present with hypoxemia, low oxygen in the blood, and hypercapnia, increased carbon dioxide in the blood.

慢支患者经常合并有低氧血症，即血中氧气含量低，以及高碳酸血症，即血中二氧化碳含量高。

Increased PCO2 means that the partial pressure of O2 in the lungs goes down, and a lower PO2 means less oxygen gets to the blood, causing hypoxemia.

二氧化碳分压升高意味着肺中氧分压降低，进入血液的氧气更少，导致低氧血症。

After the water hits your larynx or voice box, it will begin spasming and you will develop hypoxemia or a decrease of oxygen in the bloodstream.

水流到你的喉咙或喉咙后，它会开始痉挛，你会出现低氧血症或血流中的氧气减少。