Water Quality CRK Admin 2015-06-04T10:38:40+00:00. The Chattahoochee River is the most heavily used water resource in Georgia. From north Georgia to the Florida line, the riverâs watershed faces many threats to its health including stormwater and wastewater pollution from urban, industrial, and agricultural sources.
Medical Definition of Exacerbation. Exacerbation: A worsening. In medicine, exacerbation may refer to an increase in the severity of a disease or its signs and symptoms. For example, an exacerbation of asthma might occur as a serious effect of air pollution, leading to shortness of breath.
Criteria for the diagnosis of COPD have been established.3 However, there is no validated diagnostic test or biomarker of COPD exacerbations.4 The American Thoracic Society (ATS) and European Respiratory Society (ERS) define an exacerbation as an acute change in a patient's baseline dyspnea, cough, or sputum that is beyond normal variability, and that is sufficient to warrant a change in therapy.5 The ATS and ERS classify COPD exacerbations as mild, moderate, or severe, based on the ...