1. Pulse oximetry also is not a complete measure of circulatory sufficiency. 2. The worldwide market for pulse oximetry is over a billion US dollars. 3. Alternative methods of measurement include pulse oximetry and seismocardiography. 4. All patients with CAP should have their blood oxygen monitored with pulse oximetry . 5. Pulse oximetry is one of the most common monitoring technologies used in healthcare. 6. Pulse oximetry can provide an early warning of hypoxemia. 7. A pulse oximetry clip is attached to the patient's finger or earlobe. 8. Pulse oximetry is one example of how spectral differences exist and can be used. 9. Reflectance pulse oximetry may be used as an alternative to transmissive pulse oximetery described above. 10. If methemoglobinemia is suspected, an arterial blood gas and co-oximetry panel should be obtained. 
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