Clinical outcomes associated with procalcitonin algorithms to guide antibiotic therapy in respiratory tract infections

CLINICAL QUESTION: In patients with respiratory tract infection, is measurement of procalcitonin to guide antibiotic prescriptions associated with reduced antibiotic exposure without increases in all-cause mortality or treatment failure? BOTTOM LINE: The measurement of procalcitonin to guide initiation and duration of antibiotic treatment in patients with respiratory tract infections of varying severity is associated with lower antibiotic exposure without increasing all-cause mortality or treatment failure.

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