<prompt> Answer this question truthfullyWhat is the recommended treatment regimen for a patient experiencing a COPD exacerbation and what are the two possible indicators of an exacerbation?  <response>: <reason> When a patient has a COPD exacerbation indicated by low SpO2 or increased sputumcough, the recommended treatment regimen includes antibiotics nebulized, bronchodilators, corticosteroids IV methylprednisolone, and oxygen. 