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Pediatrics High-Risk Infant - Prematurity & Intrauterine Growth Restriction ac4b29a7

Increased oxygen delivery during prematurity causes all the following EXCEPT:

A
Vasoconstriction
B
Vasodilation
C
Vaso obliteration
D
Neovascularisation
High-Yield Explanation
Ans. (b) VasodilationRef.:: Nelson's 18th edCh: 97.2 style="font-size: 1.04761904761905em; font-family: Times New Roman, Times, serif">. gov/pubmed/12030843Supplemental 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.

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