What’s SpO2?
The oximeter uses non-invasive measurement infrared technology to measure the oxygen content in the fingers, toes, and ears. This is the most common place to measure the oxygen content in the blood oxygen. The measurement object is more accurately called the blood oxygen saturation, that is, SpO2. The results of the test are expressed in digital form. The main display is the ratio of total oxygen saturation under actual oxygen content. It is generally expressed as a percentage. The typical blood oxygen saturation of the human body is 90-100%, but the lowest can also be over. To 60%. The blood oxygen saturation of the human body depends on many factors. The most important factor is the poor blood supply capacity of the patient’s body and the reading of HbO2 will decrease.
How to use oximeter?
First press the Reset button, the screen will display the ready status. Then press the opening jaw. Put your left hand or right middle finger into the working compartment. At this time, you can see the infrared light in the working compartment. Pay attention to: Don’t pinch your fingers, don’t wet your hands, and don’t have foreign objects (such as nail polish) on the nail surface. After waiting for the finger to fully contact the working chamber, the LED will display the detection speed. When entering the detection state, you should pay attention to keep the tested fingers stable, do not shake up and down, and it is best to put your hands on the table smoothly and adjust the breathing evenly.
Who is it for?
The oximeter is mainly used for vascular diseases, respiratory diseases, elderly people over 60, long-term alcohol abuse, and people who work more than 12 hours a day. It can also be used for blood oxygen monitoring in extreme sports and high mountain hypoxia environments.
What can affect pulse oximeter reading?
The pulse oximeter can give a false reading under certain conditions such as decreased blood flow, patient unable to keep still, very low oxygen saturation in patients in shock, patients with scleroderma, heart arrhythmia, carbon monoxide poisoning or even painted nails.
A normal people SpO2 level
The main measurement indicators of the oximeter are pulse rate, blood oxygen saturation, and perfusion index (PI)
Pulse: The pulse and heartbeat of a normal person are the same. Normal adults are 60 to 100 times/min, often 70-80 times per minute, with an average of about 72 times/min. The elderly are slower, 55 to 60 beats per minute. The frequency of pulse is affected by age and gender, fetus 110-160 beats per minute, baby 120-140 beats per minute, infants 90-100 beats per minute, and school-age children 80-90 beats per minute. Blood oxygen: Normal human arterial blood oxygen saturation is about 95% to 98%, and mixed venous blood oxygen saturation is about 75%.
It is generally recognized that the blood oxygen saturation should not be less than 94% in normal, and it is insufficient oxygen supply below 94%.
The oxygen and pulse finger monitor measures the arterial blood oxygen saturation. The blood oxygen saturation of the blood oxygen saturation refers to the percentage of the total hemoglobin combined with oxygen in the peripheral blood. Through the measurement of blood oxygen saturation, it can reflect the oxygen supply status of the body. If the blood oxygen saturation is less than 90%, the patient will have mild hypoxia symptoms. If it is less than 85%, there will be a series of symptoms such as chest tightness, wheezing, and sitting breathing. If the blood oxygen saturation is less than 80%, the body is in severe deficiency. The state of oxygen often indicates a serious condition. Ordinary people are prone to insufficient blood oxygen saturation when they are tired from work or over-study. They are prone to sleepiness and lack of energy. All they need to do is to breathe fresh air and rest.
What stand for for the two numbers on a pulse oximeter?
One number gives you your current heart rate (beats per minute). The other number shows the percentage of oxygen in your blood. The oxygen should be above 90, preferably 95–99%. The heart rate should be under 90 unless you’re exercising or in a state of panic.
Is Pulse Oximeter accurate?
General speaking, the readings on the finger pulse oximeters are accurate. But, there are some factors that can affect the functioning of the device and result in errors or inappropriate readings. So under proper use, most oximeters are accurate, but there is a 2 percent error.