Product FAQs

People usually ask

How does Blood Oxygen Ring work?

The small electronic device is wear on finger, recommended on the thumb. The device emits light that passes through the fingernail, skin, tissue, and blood. On the other side of the finger, a sensor detects and measures the amount of light that passes through the finger without getting absorbed by the tissue and blood. Using that measurement, the device calculates the oxygen saturation of the blood.

What are the pros and cons of Blood Oxygen Ring?

Blood Oxygen Ring offers many advantages over traditional methods of measuring blood oxygen levels. Whereas traditional methods usually involve drawing a sample of arterial blood—a potentially painful experience for patients that requires around 15 minutes, at minimum, to analyze blood samples—pulse oximetry is noninvasive and provides near-immediate readings. What’s more, pulse oximeters can be used continuously and, therefore, can provide long-term monitoring of a person’s blood oxygen levels.

At the same time, pulse oximetry is less precise than conventional methods, such as arterial blood gas testing. Also, it does not provide as much information on other blood gases (e.g., carbon dioxide) as do tests that directly measure the blood.

When should Blood Oxygen Ring be used?

Today, Blood Oxygen Ring has used across a broad range of health care settings. In general practice, they are frequently used to quickly assess someone's general health, for instance, during a routine physical examination. In fact, Blood Oxygen Ring has become so widespread that blood oxygen saturation is often referred to as the “fifth vital sign,” a piece of data collected alongside four other measurements—temperature, blood pressure, pulse, and respiration rate—to gain insight into a person’s health status.

Outside of general practice, Blood Oxygen Ring is most frequently used to monitor patients with lung and heart disorders, who are at risk of low levels of blood oxygen. In clinical settings, they are routinely used in the following situations:

-To monitor patients before, during, and after surgery, including during anesthesia

-To monitor patients on certain medications that may reduce respiration and lung function

-To assess the lung function of people with conditions that can cause reduction of blood oxygen levels, including   COPD, asthma, acute respiratory distress syndrome (ARDS), anemia, pneumonia, lung cancer, cardiac arrest, and   heart failure, among others

-To assess individuals with sleep disorders such as sleep apnea

When Blood Oxygen Ring are used at home, it has usually been by people with known lung conditions, who may regularly monitor their blood oxygen saturation levels with guidance from their doctors.

What do certain blood oxygen level mean?

A resting oxygen saturation level between 95% and 100% is regarded as normal for a healthy person at sea level. At higher elevations, oxygen saturation levels may be slightly lower. People should contact a health care provider if their oxygen saturation readings drop below 92%, as it may be a sign of hypoxia, a condition in which not enough oxygen reaches the body’s tissues. If blood oxygen saturation levels fall to 88% or lower, seek immediate medical attention.

Note that for people with known lung disorders such as COPD, resting oxygen saturation levels below the normal range are usually considered acceptable. A physician can provide details on appropriate oxygen saturation levels for specific medical conditions.

Most pulse oximeters are accurate to within 2% to 4% of the actual blood oxygen saturation level. This means that a pulse oximeter reading may be anywhere from 2% to 4% higher or lower than the actual oxygen level in arterial blood.  

Is there anything that can affect the Blood Oxygen Ring readings?

A number of factors can impair the functioning or accuracy of  Blood Oxygen Ring.  Certain dyes used for diagnostic tests or medical procedures can hinder light transmission. Excessive motion—shivering, shaking, or other movement—can also cause erroneous readings.