• Vidya Sharma, M Denise Dowd, Andrew J Slaughter, and Stephen D Simon.
• Department of Pediatrics, Children's Mercy Hospital, 2401 Gilham Rd, Kansas City, MO 64108, USA. vsharma@cmh.edu
• Arch Pediat Adol Med. 2002 Jan 1;156(1):41-3.

BackgroundEvidence shows that the rapid detection of influenza using an enzyme-linked immunosorbent assay decreases antibiotic use in the treatment of pediatric patients. To our knowledge, the effect on other diagnostic testing in an emergency department (ED) has not been examined.ObjectiveTo determine the effect of rapid diagnosis of influenza virus type A on the clinical management of febrile infants and toddlers in a pediatric ED at an urban children's hospital.Materials And MethodsA retrospective review of ED records from an electronic database was performed. All children 2 to 24 months of age, with a temperature higher than 39 degrees C who had a positive influenza virus type A test result using an enzyme-linked immunosorbent assay from November 1, 1998, through April 30, 2000 (n = 72), were included in this study. Two groups were compared-those who had positive test results reported before discharge from the ED (early diagnosis) and those who had positive test results after discharge (late diagnosis).ResultsForty-seven patients (65%) were in the early diagnosis group and 25 (35%) in the late diagnosis group. The groups were similar for age, temperature, and triage category. Fewer patients in the early diagnosis group received ceftriaxone sodium compared with those in the late diagnosis group (2% vs 24%, P =.006); there were fewer urinalyses (2% vs 24%, P =.006) and complete blood cell counts performed (17% vs 44%, P =.02).ConclusionsRapid confirmation of influenza virus type A infection seems to decrease ancillary tests and antibiotic use in febrile infants and toddlers in the ED. A prospective study with a larger group is needed to confirm these findings.

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