
The amount of oxygen in the body is measured using a pulse oximeter, which is affixed to the fingertip. The assessment of oxygen levels is essential in a variety of medical problems. Oxygen is required for more than just breathing. To survive, every cell in the body requires oxygen. Under normal circumstances, a person's oxygen levels stay normal (i.e. at 95 percent), however in situations of COPD, heart attacks, Asthma, and lung cancer, oxygen levels do not keep stable on their own when under anaesthetic. Regular monitoring is critical in these situations, and pulse oximeters are the perfect tool for the job.
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