“…Various studies have been carried out on the effect of positioning of the infant on the residual volume in preterm infants, but the results vary from one study to another. There are different studies indicating that the prone position or the supine position or left lateral position reduces gastric residual volume (Chen, Tzeng, Gau, Kuo, & Chen, 2013;Cohen, Mandel, Mimouni, Solovkin, & Dollberg, 2004;Hwang, Ju, Kim, Lee, & Kim, 2003;Jebreili, Syeedrasooli, Headarzadeh, & Morteza, 2011;Sangers et al, 2013;Yu, 1995). For preterm infants, the best lying position is the prone position.…”