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Routine Oximetry: A Fifth Vital Sign?
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Basic Medical Economics and Systems Efficiency
Today, most pulmonary specialists, whether in private practice, large clinics or hospital-based medical centers, have ready access to accurate pulse oximeters. These oximeters are usually available on a “continuous standby basis” for selected patients. In such settings they are essentially as available as an ophthalmoscope, automated blood pressure cuff, etc. Most often, nurses, technicians, physicians' assistants, etc are the personnel measuring the patients' saturation with this equipment. I
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In the hospital-based pulmonary clinic which I attend, the availability and simplicity of routine oximetry is much greater than the spirometry (see Loggan's protocol) and I certainly would recommend employment of routine oximetry before routine spirometry In my experience, routine oximetry is helpful for carefully monitoring all patients who are receiving continuous supplemental oxygen therapy and also in those patients with moderate to severe pulmonary disease who have “borderline” hypoxemia
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2021, Heart and LungCitation Excerpt :The British Thoracic Society (BTS) has issued guidelines for the provision of oxygen to give recommendations for target arterial oxygen saturation (SpO2) in acutely unwell patients.1 Pulse oximetry is so universally used in the critical care setting that it is often regarded as a fifth vital sign.2 Nevertheless, pulse oximetry has its limitations, because during normoxia and hyperoxia, the arterial blood is nearly fully saturated (SpO2 ≥ 97%) in the typical patients, especially those receiving supplemental oxygen.3
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