Everything You Need to Know About Pulse Oximeters

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Pulse oximeters are an essential tool for quickly measuring blood oxygen levels non-invasively. Monitoring blood oxygenation helps identify unhealthy oxygen saturation in the blood. Low measurements are the first indicator that someone needs medical attention due to reduced oxygen levels. 

What is a Pulse Oximeter?

A pulse oximeter is a small device that is usually placed on the fingertip. It uses infrared light to measure blood oxygen levels and is also often found in healthcare and other clinical settings. In some instances, athletes also use them to monitor performance.

What Does a Pulse Oximeter Do?

A pulse oximeter measures how well the heart is pumping blood throughout the body. People with health conditions such as asthma or COPD may have lower blood oxygen levels and may need to measure levels regularly. Typically, people with respiratory conditions and heart conditions may need to keep a pulse oximeter handy. 

How to Read a Pulse Oximeter

Most pulse oximeters display your oxygen saturation level and your pulse rate. They may also show a pulse bar graph. To best understand the numbers on display, use the graph below to know healthy blood oxygen levels. 

95-100% SpO2Normal
91-95% SpO2Concerning
>90% SpO2Low
80-85% SpO2Point when low levels may affect your brain
67% SpO2Critically low levels

How Accurate are Pulse Oximeters?

Pulse oximeters cleared by the FDA often fall within a 2-3% range of accuracy. However, several real-world factors can affect the readings of the device. These include, but are not limited to:

  • Nail Polish
  • Skin Pigmentation
  • Tobacco Use
  • Skin Temperature

How Much Does a Pulse Oximeter Cost? 

Pulse oximeters are reasonably priced. They range in cost from $34.00 to $53.00 depending on design, portability, and additional features.

Is It Safe to Buy a Pulse Oximeter Online?

You can find a variety of pulse oximeters that are safe for purchase online. Reputable brands can be found at the Oxygen Concentrator Supplies Shop. Call 888-941-1688 or also email contact@oxygenconcentratorsupplies.com today.