The Daily Telegraph

Phones can measure oxygen levels in blood


Smartphone­s can be used to triage patients by measuring oxygen levels in their blood, according to a study.

Scientists placed volunteers’ finger over phone cameras and activated the flash while recording video. They then used Artificial Intelligen­ce (AI) to detect oxygen levels, via flow patterns.

The method was 80 per cent accurate when the blood oxygen level of young volunteers was reduced.

Jason Hoffman, a doctoral student who co-led the study, said: “With our test, we are able to gather 15 minutes of data from each subject.

“Our data shows that smartphone­s could work well in the critical threshold range.”

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