How To Use Pulse Oximeter Nhs. The pulse oximeter uses the the ratio of oxygenated to deoxygenated haemoglobin to calculate how much oxygen the blood is carrying as a fraction of the maximum it could carry, expressing the result as a percentage of oxygenation, or spo2 to medical professionals. It should be read alongside the covid oximetry @home standard operating procedure, as well as the general practice and community health services standard operating procedures.
The scheme is extremely simple to use. A pulse oximeter is a small medical device that is put on the tip of the finger, to check someone’s oxygen levels. It works best on your middle or index finger (shown in the diagram).