Individuals managing chronic health conditions may be asked by their doctor to track their blood oxygen levels, especially when receiving respiratory therapy. Obtaining blood oxygen readings is an excellent tool to validate if the therapy protocol is working. The handheld pulse oximeter stores the readings to share with a healthcare provider for evaluation to determine if adjustments are needed.
What is a pulse oximeter?
Pulse oximeters are medical devices that measure blood oxygen levels (SpO2) and heart rate through a noninvasive and painless method.
How do pulse oximeters work?
Pulse oximeters use a oxygen sensor that sends small beams of light through the blood to measure the amount of oxygen. This method measures the changes in light absorption in oxygenated or deoxygenated blood.
What is the difference between a handheld and tabletop oximeter?
Tabletop pulse oximeters are a great choice for medical clinics and hospitals. They provide all of the benefits of a tabletop oximeter while having a compact and portable design that's perfect for on-the-go use.
How does one use a handheld oximeter?
To use a handheld O2 sensor, put the probe on the patient's finger. Some oximeters also use an earlobe, forehead, toe, or nose probe. For each option, position the probe so it is not loose or pinching the patient. The oximeter should now be ready to gather its reading. Wait until the screen provides all information before removing it in the case of a spot check. If the oximeter is being used for continual scanning during surgery or otherwise, be sure to position the probe to ensure consistent and accurate readings.
What causes false readings on an oximeter?
Pulse oximeters use light to scan the blood for SpO2 and PR. Because of this method, various things can cause inaccurate readings by obscuring the light. This includes nail varnish or pigment on the finger, bright light, patient movement, poor perfusion, and carbon monoxide poisoning.
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