#COVID19 is causing a discrepant picture b/w relative clinical comfort and very troubling Pulse ox. Seems like the virus is attacking hemoglobin and shifting oxygen dissociation curve moreso than just blocking gas exchange at alveoli. Thoughts? @CMichaelGibson @drsanjaygupta

— Adeel Shahid, MD (@AdeelShahidMD) April 6, 2020