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Abstract Preterm infants born before 37 weeks are not mature enough to coordinate sucking, breathing and swallowing. As they get stronger, they can start to get feeding through a tube goes into the stomach through the nose or mouth. Infant body position after feeding has been considered an important factor affecting gastric emptying. This study aimed to assess the effect of enteral feeding tubes’ insertion sites and preterm infants’ position on aspirated gastric residuals. Research design: A quasi-experimental design was used. Setting: the study was conducted in the neonatal intensive care unit at Bilques Central Hospital. Subjects: A convenient sample of 98 simple preterm infants who were divided randomly into control and experimental groups were included. Tool of data collection: data were collected using preterm infant interview sheet and observation sheet during preterm infants’ hospital stay. The results of this study revealed that preterm infants lying in the supine position regardless of tubes’ insertion site had more episodes of non-significant aspirated gastric residuals. Moreover, there was a positive relation between amount of aspirated gastric residuals and gestational age. This study concluded that, assigning preterm infant in the right side position could reduce aspirated gastric residual regardless of the tube insertion site. Recommendations: replication of the study in a bigger sample with different diagnosis. |