A 68-year-old male with a 40-pack-year smoking history and a…

A 68-yeаr-оld mаle with а 40-pack-year smоking histоry and a known diagnosis of Chronic Obstructive Pulmonary Disease (COPD) presents to the clinic with a 5-day history of increased shortness of breath, increased sputum production, and a change in sputum color from clear to yellow-green. He reports using his albuterol inhaler more frequently than usual with minimal relief. His baseline COPD is managed with a long-acting muscarinic antagonist (LAMA). Vital signs: T 99.8°F, HR 92, RR 22, SpO2 91% on room air. Lung auscultation reveals bilateral expiratory wheezes and coarse crackles at the bases.  According to the GOLD (Global Initiative for Chronic Obstructive Lung Disease) guidelines, which of the following is the most appropriate initial outpatient management plan for this exacerbation?