What Is a Pulse Oximeter

What Is a Pulse Oximeter
There days,the Pulse Oximeters are the hot-sellings in the market due to the COVID-19 of coronavirus Pandemic all over the world,which is outbreak in Europe of ITALY,Spain,Germany,UK ,as well as the USA.
Why the pulse oximeter,especially of the finger tip pulse oximeter is a hot product?
Here,let's make more introduction about the Pulse Oximeter to you.
A pulse oximeter is a small, lightweight device used to monitor the amount of oxygen carried in the body. This noninvasive tool attaches painlessly to your fingertip, sending two wavelengths of light through the finger to measure your pulse rate and how much oxygen is in your system. Once the oximeter finishes its assessment, its screen will display the percent of oxygen in your blood coming from your heart—as well as your current pulse rate. 
Blood Oxygen Saturation (SpO2)
Your SpO2 reading is an estimation of the amount of oxygen in your blood. An SpO2 reading of 95% or greater is generally considered to be a normal oxygen level. However, an SpO2 reading of 92% or less (at sea level) suggests that your blood is poorly saturated. Insufficient saturation can cause a range of adverse health conditions—including chest pain, shortness of breath and increased heart rate.
Pulse Rate
Your pulse rate is an estimation of the number of times your heart contracts per minute. According to the Mayo Clinic, normal pulse rate values for adults range from 60 to 100 beats per minute (bpm).In general, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness. For most people, a pulse rate below 60 bpm indicates abnormally slow heart action, also known as bradycardia. Bradycardia can cause a number of problematic symptoms—including fainting, fatigue, chest pains and memory problems.
A pulse oximeter gives you accurate insights on your SpO2 and pulse rate within a matter of seconds, empowering you to respond quickly and confidently to abnormal readings. As a result, many people with adverse heart and breathing conditions invest in personal oximeters for in-home use.
Note: SpO2 and pulse rate measurements outside the normal range aren’t always a sign of health problems. For example, your heart rate can be expected to increase during exercise, and oxygen saturation may decrease slightly (it should still remain at 90% or greater).
Who can use the Pulse Oximeters?
Pathological hypoxia:
hypoxia in the body caused by cardiovascular, cerebrovascular or respiratory diseases (pulmonary heart disease, old chronic bronchitis, chronic obstructive pulmonary disease, etc.).
Physiological hypoxia:
Insufficient oxygen uptake due to physiological aging of tissues and organs, women's pregnancy, excessive brain use or intense exercise. (Elderly people over 60 years old, white-collar workers, backbones, elite pregnant women, students with high learning pressure, professional athletes etc.)
Environmental hypoxia:
Located in a plateau or confined space, where the air is not smooth (such as long-term underground workers, bars, etc.).
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