Could “red cell distribution width” predict COPD severity?

Conclusion The variability in the size of circulating erythrocytes increases as the COPD severity progresses. Therefore, a simple and noninvasive test, such as RDW, might be used as a biomarker in the evaluation of the severity of COPD. At the same time, there seems to be a correlation between the survival of COPD patients and RDW.
Source: Revista Portuguesa de Pneumologia - Category: Respiratory Medicine Source Type: research