=> This is a great idea. CRP tests can be done rapidly and are readily available. Benefit of stopping antibiotics as soon as possible, but not too soon, is high in terms of both the patient's health and the cost of hospitalization.
CRP Testing to Guide Antibiotic Therapy for COPD Exacerbations: In a randomized trial, point-of-care C-reactive protein measurements lowered antibiotic prescribing without compromising clinical outcomes for patients with chronic obstructive pulmonary disease.