* corticosteroid use for \> 48h within the past 15 days prior to enrollment * use of steroids with doses higher than the equivalent to dexamethasone 6 mg * use of immunosuppressive drugs * pregnant women * chronic oxygen use * known history of dexamethasone allergy * dnr / dni * patient or proxy cannot consent

* corticosteroid use for \> 48h within the past 15 days prior to enrollment * use of steroids with doses higher than the equivalent to dexamethasone 6 mg * use of immunosuppressive drugs * pregnant women * chronic oxygen use * known history of dexamethasone allergy * dnr / dni * patient or proxy cannot consent

- corticosteroid use for > 48h within the past 15 days prior to enrollment - use of steroids with doses higher than the equivalent to dexamethasone 6 mg - use of immunosuppressive drugs - pregnant women - chronic oxygen use - known history of dexamethasone allergy - dnr / dni - patient or proxy cannot consent

- corticosteroid use for > 48h within the past 15 days prior to enrollment - use of steroids with doses higher than the equivalent to dexamethasone 6 mg - use of immunosuppressive drugs - pregnant women - chronic oxygen use - known history of dexamethasone allergy - dnr / dni - patient or proxy cannot consent