Introduction of the SpO2 parameter

author: Tyler Wang
06/06/2022
Introduction of the SpO2 parameter

The oximeter uses two different wavelengths of light to measure the concentration of reduced and oxygenated blood proteins in pulsatile pulsed blood, and displays the values ​​of pulse and blood oxygen saturation after being processed by a microcomputer. It is a very effective non-invasive continuous percutaneous measurement of blood oxygen saturation (SpO2) monitoring method developed in the late 1980s. It has been widely used in clinical anesthesia and ICU.

1.1 SpO2 is a monitoring item for ventilator treatment, which helps to find the hypoxic state caused by mechanical factors such as pipeline detachment, distortion, lumen effusion and oxygen exhaustion, and improper parameter setting. Dynamic monitoring of SpO2 after artificial ventilation, combined with blood gas analysis, can adjust respiratory parameters to a reasonable level in time.
1.2 Patients who are swallowed by various reasons such as trauma and anesthesia may suffer from insufficient ventilation due to airway obstruction and spontaneous breathing depression, resulting in a decrease in SpO2, and emergency treatment is required.

1.3 Lung atelectasis due to sputum yang blockage is more common in sputum incapacitated patients with coma, manifested as low SpO2, and SpO2 can return to normal after timely sputum suction.
1.4 Continuous SpO2 monitoring can also reflect the development trend of diseases such as ARDS, pulmonary contusion, and craniocerebral injury, and evaluate the effect of various treatment measures. For patients whose PaO2 cannot be increased by increasing Fio2 and whose SpO2 monitoring indicates a progressive decline or persistent hypoxic state, the examination rate is post-traumatic respiratory distress syndrome. The use of artificial ventilation at this time and continued postoperative monitoring and active treatment will help reduce mortality.