What is a good reading on pulse oximeters?

Normal pulse oximeter measurements are 95% or higher for healthy people and around 90% for those with sleep apnea or chronic lung disorders. To stay on the safe side, call a doctor if your blood oxygen levels fall below 95%.

What are the two readings on a pulse oximeter?

Most pulse oximeters measure blood oxygen levels (SpO2) and pulse rate, but some models may also show your pulse strength, pressure index, or arterial oxygen saturation (SaO2). The latter value indicates the amount of oxygen in hemoglobin, or red blood cells.

How accurate is a finger pulse oximeter?

Pulse oximeter reading accuracy depends on the device and other factors, such as your skin temperature and color. As outlined in the FDA Safety Communication, consumers with certain medical conditions shouldn't rely solely on pulse oximeters, as these devices tell only part of the story. Plus, there is a risk of inaccurate measurements, regardless of the brand or model used. A 2018 study published in the European Respiratory Journal assessed the accuracy of three handheld finger pulse oximeters in a clinical setting. Most devices had low error rates, with a mean difference in SpO2 levels of -2.9 to 0.2%. The accuracy of measurements is often highest at SpO2 levels of 90% to 100% and lowest at SpO2 levels below 80%, according to the FDA. Additionally, people with darker pigmented skin are more likely to get a lower oxygen level reading than caucasian people. Given these aspects, it makes sense to interpret the results with caution and pay attention to any symptoms you may experience.

Are cheap pulse oximeters accurate?

Some pulse oximeters cost less than $5 and may seem like a good choice for occasional use. But like with most things, you get what you pay for. In one study , researchers investigated the accuracy of six low-cost OTC pulse oximeters from different brands. Four of the devices tested gave inaccurate readings, with an average error rate of up to −6.30%. The other two were surprisingly accurate and gave similar readings as other more expensive devices. All in all, low-cost oximeters are not necessarily a bad investment, but you're better off with a medical-grade device. If you still prefer a cheap, handheld pulse oximeter, take the time to shop around and compare multiple brands. Read customer reviews, consult your doctor, and buy from a trusted vendor.

What brand of pulse oximeter do hospitals use?

Most hospitals use FDA-approved pulse oximeters from trusted brands like Masimo, Innovo, and Nonin. Some clinical settings rely on complex machines with built-in pulse oximeters, heart rate monitors, and blood pressure meters.