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Pulse oximeters are medical devices used to measure the oxygen saturation level in a patient's blood non-invasively. They typically consist of a light-emitting diode (LED) and a photodetector that work together to assess the amount of oxygenated hemoglobin in the blood. This is achieved by shining light through a translucent part of the body, often a fingertip or earlobe, and analyzing the light absorption characteristics of oxygenated versus deoxygenated blood. Pulse oximeters are commonly used in hospitals, clinics, and home care settings to monitor patients' respiratory and cardiovascular health.
| Measurement range | 70% to 100% SpO2 |
| Accuracy | ±2% for SpO2 readings |
| Power source | Battery-operated or rechargeable |
| Display type | Digital LED or LCD |
| Weight | Typically 50g to 100g |
When selecting a pulse oximeter, buyers should consider the accuracy and measurement range of the device, as well as its ease of use and portability. It is important to specify whether the oximeter will be used for adult or pediatric patients, as some models are designed specifically for one or the other. Additionally, inquire about any certifications such as FDA approval or CE marking, which can indicate the device's reliability and safety standards. Quantities may also affect pricing, so be prepared to discuss your needs with suppliers.
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It uses light absorption characteristics to measure oxygen saturation in the blood.
No, pulse oximeters can be purchased without a prescription.
A normal SpO2 level typically ranges from 95% to 100%.
They are generally suitable for adults and children, but specific models may be designed for pediatrics.
It depends on your health condition; consult your healthcare provider for recommendations.
Nail polish, poor circulation, and skin pigmentation can impact accuracy.