How To Detect Blood Oxygen Saturation

How to Detect Blood Oxygen Saturation

Checking the oxygen saturation in the blood can help diagnose or monitor lung disease.

Test methods to detect blood oxygen saturation include:

· Pulse oximeter

· Blood oxygen sensor

Pulse oximeter

What is a pulse oximeter

Oxygen travels in red blood cells through a molecule called hemoglobin. A pulse oximeter measures the amount of oxygen carried by hemoglobin in the blood. This is called blood oxygen saturation and is a percentage (out of 100). This is a simple, non-invasive test, usually using a pulse oximeter or blood oxygen sensor placed on the fingertip or earlobe.

What does a pulse oximeter do?

People with lung disease may have lower-than-normal blood oxygen levels, so a pulse oximeter can help diagnose a problem.

The more damaged the lungs, the more likely there is a problem with oxygen uptake. A pulse oximeter can also be used to measure how badly a person's lungs are affected.

This test can be done as a one-time on-site measurement.

It can also be used to measure oxygen levels over time, such as during exercise such as walking or while you are asleep.

blood oxygen sensor

What is a blood oxygen sensor?

The blood oxygen sensor, the full name of the blood oxygen saturation probe (SpO2 Sensor/SpO2 Probe in English), is called the optical measurement method from a medical point of view. It is a non-invasive method using a photoelectric sensor. As a transparent container for hemoglobin, red light with a wavelength of 660 nm and near-infrared light with a wavelength of 900-940 nm were used as the incident light sources, and the light transmission intensity through the tissue bed was measured to calculate the hemoglobin concentration and blood oxygen saturation. Through SpO2 monitoring, SpO2, pulse rate and pulse wave can be obtained. It is used for blood oxygen monitoring of various patients, usually the other end is connected to an ECG monitor

What does the blood oxygen sensor do?

• Continuous monitoring of SPO2 can significantly improve the clinical ability to monitor hypoxemia, thereby preventing accidents caused by hypoxia and improving patient safety

• Dynamic monitoring of SPO2 can reflect the state of pulmonary oxygenation and guide respiratory therapy

What preparations should be done before testing blood oxygen saturation?

Nail polish or fake nails can block light and affect measurements. Therefore, the fingernails to be measured should be cleaned before measurement. This will help get accurate measurements.

What types of pray-med blood oxygen sensors are available?

• Repeated use of blood oxygen probes

Adult: finger clip / soft finger sleeve / ear clip / head wear / wrap

Children: finger clips/soft finger cots/wraps

Baby: finger cot/wrap

Newborn: Binding

• Disposable SpO2 probe

Adult: non-woven/foam/sponge

Children: non-woven fabric/foam/sponge

Baby: non-woven/foam/sponge

Newborn: non-woven fabric/foam/sponge

What would the possible measurement results look like?

An oximeter or monitor connected to a blood oxygen sensor displays the percentage of oxygen in the blood. For a healthy person, normal blood oxygen saturation levels will be around 95-100%. If the oxygen level falls below this value, it may indicate a lung problem. People with low oxygen levels may need extra oxygen or other treatments. Individuals with a resting stable oxygen saturation of 92% or less should be referred for further evaluation to determine whether oxygen therapy is appropriate.

For details, please consult a professional medical staff.