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A pulse oximeter probe applied to a person's finger. A pulse oximeter is a medical device that indirectly monitors the oxygen saturation of a patient's blood (as opposed to measuring oxygen saturation directly through a blood sample) and changes in blood volume in the skin, producing a photoplethysmogram that may be further processed into other measurements. [4]
ORi is intended to supplement, not replace, oxygen saturation (SpO 2) monitoring and partial pressure of oxygen (PaO 2) measurements. ORi can be trended and has optional alarms to notify clinicians of changes in a patient's oxygen reserve, and may enable proactive interventions to avoid hypoxia and unintended hyperoxia. [citation needed]
An oxygen analyser for breathing gas mixtures for diving. The type of oxygen sensor used in most underwater diving applications is the electro-galvanic oxygen sensor, a type of fuel cell, which is sometimes called an oxygen analyser or ppO 2 meter. They are used to measure the oxygen concentration of breathing gas mixes such as nitrox and ...
Cardiac monitoring, which generally refers to continuous electrocardiography with assessment of the patient's condition relative to their cardiac rhythm. A small monitor worn by an ambulatory patient for this purpose is known as a Holter monitor. Cardiac monitoring can also involve cardiac output monitoring via an invasive Swan-Ganz catheter.
Sophisticated gas sensor systems are being researched for use in medical diagnostic, monitoring, and treatment systems, well beyond their initial use in operating rooms. Gas monitors and alarms for carbon monoxide and other harmful gases are increasingly available for office and domestic use, and are becoming legally required in some jurisdictions.
This method of intracranial pressure monitoring requires placement of an oxygen probe into the penumbra, the area surrounding the injury that is most at risk of secondary injury from hypoxia. The probe measures levels of oxygen in the area, with levels under 15mmHg treated with increasing oxygen levels in the body. [2]
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