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  • Title: Clinical Impact of a Rapid Streptococcal Antigen Test on Antibiotic Use in Adult Patients.
    Author: Dodd M, Adolphe A, Parada A, Brett M, Culbreath K, Mercier RC.
    Journal: Diagn Microbiol Infect Dis; 2018 Aug; 91(4):339-344. PubMed ID: 29731388.
    Abstract:
    INTRODUCTION: Adult pharyngitis is rarely attributable to group A streptococci. Utilization of a rapid streptococcal antigen test (RADT) may improve appropriate prescribing for bacterial pharyngitis. METHODS: Clinic 1 performed RADTs with subsequent Group A DNA probe test (GADNA) from November 2014-March 2015 and November 2015-March 2016 while Clinic 2 was the control clinic, then implemented the RADT with a GADNA from November 2015-March 2016. All GADNA results were obtained for each clinic from October 2013-March 2016. RESULTS: At Clinic 1, 22.2% versus 8.5% of patients received inappropriately prescribed antibiotics for a GADNA or RADT result, respectively (p=0.048). For Clinic 2, 51.1% compared to 21.4% of patients were inappropriately prescribed antibiotic for a GADNA or RADT result, respectively (p=0.038). Overall, the total GADNA without RADT testing or RADTs with subsequent GADNA testing, 41.6% versus 11% of patients were inappropriately prescribed antibiotics, respectively (p=<0.0001). CONCLUSION: Utilizing the RADT prevented unnecessary prescribing of antibiotics in adults.
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