Oximeter, another device to use to measure oxygen level in blood, the ordinary person must have reading equal or more than 95%,
If a person infected with covid 19, the oxygen level will drop to below 95%, this device is important to alert us always during in this pandemic, stay safe and stay healthy ...
Hypoxemia is defined as “a decrease in the partial pressure of oxygen in the blood.” As blood oxygen levels begin to reduce, a person may experience shortness of breath, also called dyspnea. If blood oxygen levels continue to fall, the organs may shut down, and the issue becomes life threatening.
COVID-19 is primarily a respiratory illness, and a severe case can reduce the amount of oxygen that the lungs can absorb. Blood oxygen levels have been found to be very low in some COVID-19 patients.
血氧计，另一个仪器用来测量血氧含量
普通人必须拥有等于或超过95%血氧含量，若一个人感染了新冠肺炎，他的血氧值会低过95%，这是一个重要的仪器，会常常提醒我们，尤其是在疫情期间，请保持平安，保持身体健康。。。
必须避免“快乐缺氧”(Happy Hypoxia)又称沉默低氧血症(Silent Hypoxia)是最近在新冠肺炎患者身上所察觉到的一种奇怪现象。这种低氧血症完全没有症状。
那什么是低氧血症？通常在肺部受到感染或损伤后，肺部机能将受影响，而造成肺部不能如常地为血液提供充足的氧气。这将造成血氧浓度（SpO2）降低，患者便会开始有呼吸急促、头痛、咳嗽等症状。
