RESUMO
The aim of the study was to identify the predictive factors and the signals of transient tachypnea of the newborn valued by the nurses who work at neonatal ward and rooming-in when they assess the newborn respiratory function during the immediate neonatal period in the first six hours after birth. A cross sectional study carried out at two public hospitals of São Paulo city. The sample consisted of 28 nurses who replied a structured questionnaire about the newborn respiratory function assessment practices. Data showed they valuated to know the evaluation of labor, delivery and Apgar score when they evaluate the newborn respiratory function. About the signals of respiratory distress they valued to evaluate the respiratory rate and auscultation, evaluation of the respiratory distress using the Silverman-Andersen Index besides, the neonatal nurses valued to evaluate de oxygen saturation.