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Can oxygen saturation (SpO2) show if you are infected with COVID-19?

Can oxygen saturation (SpO2) show if you are infected with COVID-19?

13 Sept 16:37 Key points summarised by AI
  • SpO2 monitors detect low blood oxygen levels (hypo-oxygenation), not direct COVID-19 infection status.
  • A drop in oxygen saturation signifies advanced COVID-19 lung damage, as the disease must be quite advanced to affect oxygen levels.
  • Consumer-grade SpO2 trackers, like smartwatches, may lack accuracy compared to medical-grade pulse oximeters due to various factors and testing limitations.
  • Maintain awareness of normal oxygen levels (typically above 96%), noting that individuals with chronic lung conditions may have a lower baseline (93-95%).
  • Prioritize RT-PCR swab tests for definitive COVID-19 diagnosis, but seek immediate medical attention if home SpO2 readings fall below 95%.
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