CMI Health - Pulse Oximetry and Emergency Medical Services

Pulse Oximetry and Emergency Medical Services | CMI Health

  • 24 May, 2022
  • Dallas Akins

The Role of Pulse Oximetry in Emergency Medicine 

While some may view pulse oximetry as a way to simply measure and record their oxygen saturation (SpO2) levels and pulse rate, it plays a far more vital role in the world of emergency medicine and treatment. Given its ability to noninvasively determine the severity of respiratory stress, pulse oximetry is now regarded as the fifth major vital sign used to determine a patient’s overall well-being. This gives pulse oximeters an essential role in emergency medical treatment and health monitoring.  

Pulse oximeters operate by using red and infrared light waves and a receptor to measure the percentage of oxygenated blood traveling through the site of measurement (generally a finger, toe, or forehead). The ratio of light waves traveling through the tissues is determined by the concentration of oxygenated blood cells vs those which are deoxygenated. This percentage is known as blood-oxygen saturation (SpO2 %). Along with this, pulse oximeters can simultaneously read an individual's pulse rate. Such measurements can help emergency medical responders recognize whether a person is experiencing bradycardia (low heart rate) or tachycardia (high heart rate). These parameters allow medical professionals to ascertain a patient’s immediate condition, helping them to determine the next critical steps for treatment. In emergency situations, acknowledging vital signs can mean the difference between life and death.  

Another key factor which improves the potential of pulse oximetry is its ability to be used on a range of patients. Pulse oximeters are relatively simple medical tools which can be designed to suit different user weights and ages. These devices are often equipped with a variety of interchangeable sensors which can be used for infants, children, and adults. Such variability improves the accuracy of readings and prevents the equipment from being limited to a specific weight or height.  

Overall, the variability and efficiency of medical grade pulse oximeters is a significant factor in their design. These devices are frequently used in medical environments, especially those which are related to emergency situations. Emergency medical technicians (EMTs) arriving at critical health-related crises rely on such medical equipment to make pivotal decisions in situations which call for immediate action.  

It’s good to note that medical-grade pulse oximeters are not limited to medical professionals and clinics. Such equipment is available in a range of shapes and sizes and can be used easily from the comfort of one's home. Pulse Oximeters are designed to monitor and measure an individual's SpO2, Pulse Rate, and Perfusion Index. Measuring and tracking this health data allows users to assess and make informed decisions related to their health when it matters most. This is especially important for thosewith chronic respiratory conditions or sleep disorders.  

Below we have provided a few examples of affordable, FDA-cleared devices available for purchase without need of a prescription. For more information on choosing a pulse oximeter that is right for you, click here! Also, read our recent blog on the importance of purchasing quality pulse oximeters.  


Travel Size Fingertip Pulse Oximeters:

CMI Health Bluetooth Fingertip Oximeter

The CMI Health PC-60FW is a Bluetooth and Mobile App compatible, FDA Cleared, Digital Fingertip Pulse Oximeter. This compact and lightweight device is built for portability and durability. 

The PC-60FW is splash proof, drop resistant, and battery operated, making it the perfect solution for on-the-go individuals who need a dependable and accurate health monitoring device. 

Our Fingertip Pulse Oximeter makes it easy to rapidly evaluate an individuals’ blood oxygen levels and pulse rate. This helps users to identify oxygen-related health conditions. For more information regarding this device, click here! 


Handheld Pulse Oximeters 

The CMI Health PC-66L is a FDA Cleared, Digital Pulse Oximeter capable of storing vital health data overtime. This pulse oximeter is compatible with infant, pediatric, and adult sensors, meaning the device can be used for health monitoring across all ages.   
PC-66L is our rechargeable pulse oximeter, making it a perfect fit for those who need a medical device for continuous health monitoring. That being said, the PC-66L can of course also be used in a spot-checking capacity. For more information regarding this device, click here! 


Overnight Monitoring Pulse Oximeter  

CMI Health - Wrist Pulse Oximeter

The OxyKnight Watch® is a smart sleep oximetry monitor that seamlessly measures, organizes, and manages data in conjunction with our mobile app. Our pulse oximeter watch is extremely comfortable to wear and operates continuously without requiring the user to adjust settings throughout the night. It’s made with a soft, flexible silicone fingertip cup and adjustable wrist strap for simple use.  

Our smart sleep oximetry monitor is capable of clinical-grade HRPO (High-Resolution Pulse Oximetry) for individuals with snoring, sleep apnea, chronic obstructive pulmonary disease (COPD), and other respiratory ailments.  

The continuous monitoring function of the OxyKnight Watch® can also be incredibly beneficial for monitoring the health of individuals diagnosed with COVID-19 

For more information on the Oxyknight® watch, click here! 


Still have questions? Feel free to contact us at or call us at 888-985-1125 (ext. 1).  


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