What is an oximeter and how should you use it in the face of Covid-19?

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What is an oximeter and how should you use it in the face of Covid-19?


In most homes, consciously or unconsciously, have a first aid kit: thermometer, paracetamol, aspirin, omeprazole… However, before the arrival of Covid-19 there is an element that cannot be missing and it is a oximeter.


What is an oximeter? The pulse oximeter comes as a clamp-shaped device which is attached to a finger or toe. IStock photo


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What is an oximeter? The pulse oximeter comes as a clamp-shaped device which is attached to a finger or toe. IStock photo

What is an oximeter?

The pulse oximeter is presented as a device in the form of a clamp which is attached to a finger or toe.. It is a portable device with a sensor connected to a cable, which measures the amount of oxygen as the level of gases (carbon dioxide) that the blood contains”Describes the American Thoracic Society.

Where to get it? It can be purchased at almost any pharmacy, but to avoid exposure to Covid-19 we recommend that you buy it online. Here is an excellent option that is in promotion: rechargeable digital oximeter.





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How do you know if your blood oxygen levels are okay?

According to the medical institute Mayo Clinic, a normal oxygen level is between 75 to 100 millimeters of mercury (mm Hg). A value lower than 60 mm Hg indicates the need for supplemental oxygen.

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This means that in the oximeter, the value should range between 95 to 100 percent. If your value is less than 90, your level is low, so it is important that you go to the doctor immediately.

How accurate is the pulse oximeter?

It is reasonably accurate. “Most oximeters mark 2% above or below the saturation level obtained by an arterial blood gas; This means that if your oxygen saturation level measured with a pulse oximeter is 92%, it may actually be between 90% or 94% ”, says the American Thoracic Society.

Although there are factors that may influence the accuracy of this device, for example, if you have painted nails, artificial nails, cold hands or poor circulation. This can lead to low oxygen levels (although it doesn’t).

How do you know that your oximeter works? The most advisable thing is that you go to the doctor with your device, and that together they take your oxygen levels. Thus, in addition to confirming that it works well, the expert can confirm that you are in good health.

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