Background and objective: Respiratory system diseases represent one of the leading cause of prescription of antibiotics. At present, new technologies for the diagnosis are being used, including the FilmArray Respiratory Panel. The objective was to identify the correlation between the diagnosis and treatment of respiratory tract infections with the result of PCR for respiratory viruses. Material and methods: Descriptive, cross-sectional, restrospective study. 134 patients were included treated at the Christus Muguerza Hospital in Saltillo, Coahuila. For all cases, the positive results of this test and the treatment patients received were analyzed. Results: 58 % received antibiotic treatment at admission, 13 % received combined treatment (antibiotic + antiviral), 27 % received symptomatic treatment since their admission and 2 % whit antiviral. After receiving a positive result for respiratory viruses, 38 % continued with antibiotics, 30 % with antibiotics and antivirals, 13.8 % only managed with antivirals and 18.2% with symptomatic treatment. Conclusion: Although we are currently on global alert for resistance to antibiotics, there is a lack of awareness about the prescription of antibiotics, due to a situation which is believed to be influenced by several factors.