PURPOSE: to regulate the findings of ABR equipment of the institution Audiology Clinic of St. Luke School, in newborns. METHODS: this is a cross-sectional study, exploratory non-experimental attended forty newborns without risk indicators for hearing loss, which passed the newborn hearing screening, divided according to age in weeks (G1, G2, G3 and G4). For data collection was used the equipment Smart EP-Intelligent Hearing Systems with click stimuli. RESULTS: the mean values of absolute latencies of waves I, III and V in accordance with age are, respectively: G1=1,62ms, 4,39ms, 6,8ms; G2=1,62ms, 4,4ms, 6,79ms; G3=1,56ms, 4,39ms, 6,74ms; G4=1,54ms, 4,2ms, 6,53ms. In the same order, the mean values of the interpeak latencies I-III, III-V and I-V were: 2,77ms, 2,42ms e 5,19ms; 2,78ms, 2,39ms e 5,17ms; 2,83ms, 2,35ms e 5,18ms; 2,66ms, 2,33ms e 4,99ms. CONCLUSION: the absolute latencies decreased with increasing age having mean of the 1,58ms for wave I, 4,34ms for wave III and 6,71ms for wave V. Similarly, the mean interpeak I-III, III-V and I-V were lower in G4 medium and obtained in the first months of 2,76ms, 2,37ms and 5,13ms.
Hearing; Electrophysiology; Infant, Newborn; Evoked Potentials; Auditory; Brain Stem
