A preterm infant is receiving oxygen to maintain respiratory status. When assessing this patient, at which level should the nurse maintain oxygenation to prevent retinopathy of prematurity?
A) 40 mmHg
B) 50 mmHg
C) 100 mmHg
D) 180 mmHg
C
Feedback:
When blood Po2 levels rise to higher than 100 mmHg, the risk of retinopathy of prematurity increases. All preterm infants who receive oxygen must have blood oxygen levels monitored by pulse oximeter, transcutaneous oxygen saturation, or blood gas monitoring so the blood Po2 level can be kept within normal limits. Oxygenation at 40 mmHg or 50 mmHg is not sufficient for the infant. Oxygenation at 180 mmHg is too high and can predispose the infant to develop retinopathy of oxygenation.
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