Unlabelled: 391 requests of collaboration to our ENT Department during 1996 have been collected. Twelve variables were analysed: number of request, age, sex, date of emission, type (ordinary, with priority, urgent), time elapsed from emission until valuation of the patient, source, reason's request, pathology, complementary tests, treatment and destination (discharge, re-examination during admission or as an outpatient and admission to ENT-Service)., Results: 1,58 request were attended per working day, 80 percent were resolved during the first 48 hours, the Internal Medicine Department was the most frequent source, fever without focus or recalcitrant was the most frequent reason from Paediatric Department. We report the epidemiologic features of the most frequent variables.