Moderate meets 3 of 5 dyspnea VAS 5 RR 24 HR 95 SaO2 3 ABG w PaO2 60 mmHg and or PaCO2 45 w o acidosis CRP 10

<b>Moderate</b> (meets 3 of 5): dyspnea VAS ≥5; RR ≥24; HR ≥95; SaO₂ <92% on RA (or pt’s usual O₂ Rx) AND/OR change in SaO₂ >3%; ABG w/ PaO₂ ≤60 mmHg and/or PaCO₂ >45 w/o acidosis; CRP ≥10.