Shulou(Shulou.com)11/24 Report--

CTOnews.com, December 29 news, affected by COVID-19 's epidemic, many businesses began to hype the oximeter, the price is much higher than the normal price, and it is not easy to buy, some netizens found that some mobile phone App said it can also replace the oximeter and electronic bracelet to measure blood oxygen, so is this reliable?

CTOnews.com learned that the oximeter mainly detects the blood oxygen saturation of the human body, reflecting the oxygen supply of human tissues and organs. The blood oxygen content of normal people is 95% to 100%. If it is less than 90%, it often indicates hypoxemia.

According to Hongxing News, Professor Sha Constituent, head of biomedical engineering at China Medical University, said that some finger oxygen saturation monitors and electronic bracelets are now sold online. as well as some smartwatches use optical methods to detect human blood oxygen saturation. Generally speaking, mobile phone software is more accurate in measuring heart rate. In terms of measuring blood oxygen saturation, it also measures the light absorbed and reflected by the human body at different wavelengths (colors) through the mobile phone camera, and calculates the degree of absorption of hemoglobin and oxygenated hemoglobin. And measure it. However, due to the different camera performance of different mobile phones, in fact, the accuracy of blood oxygen saturation measurement is not very good to say, look at some people around me to measure the situation is more accurate. Of course, the measurement accuracy of mobile phone App is certainly not as accurate as the blood oxygen monitor for medical professional use.

Sha constitutional also said that the normal value of blood oxygen content of normal people is more than 95%, while the values of 96%, 97%, and 98% are relatively normal. If the value is less than 90%, then the blood oxygen concentration is too low and very dangerous. Under normal circumstances, people under 90% will feel very uncomfortable and have obvious uncomfortable reactions. The normal range of blood oxygen saturation is very narrow, and the accuracy of measurement will be much worse. Some unregistered household oxygen saturation monitors or cell phone App only serve as a monitoring and reference.

Therefore, for the sake of health, the accurate detection of oxygen saturation requires the use of professional equipment, and the mobile phone App only plays a reference role in this regard.

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