<prompt> Increased oxygen delivery during prematurity causes all the following EXCEPT:VasoconstrictionVasodilationVaso obliterationNeovascularisation  <response>: Ans. b VasodilationRef.:: Nelsons 18th edCh: 97.2 stylefont-size: 1.04761904761905em; font-family: Times New Roman, Times, serif. govpubmed12030843Supplemental oxygen in premature infants leads to the development of bronchopulmonary dysplasia.The Pathogenesis Involves Vasoconstriction in the retina is an early response to oxygen that can lead to Vaso-obliteration. Neovascularization FibrosisOxygen causes tissue injury through the formation of reactive oxygen intermediates and peroxidation of membrane lipids. 