National Early Warning Score 2 (News2) To Identify Inpatient Covid-19 Deterioration: The Importance Of Po(2):Fio(2) Ratio

Editor – We read with great interest the early Newcastle experience of using National Early Warning Score 2 (NEWS2) to identify hospitalised COVID-19 patients at risk of clinical deterioration.[1][1] The study highlights an average \u003e30 hour lag between triggering the NEWS2 ≥5 threshold and first