When a premature infant with low birthweight is placed in an incubator, oxygen is carefully monitored because too _____ of a concentration of oxygen _____
a) high; can damage the baby's retinas, leading to permanent blindness
b) low; can damage the baby's retinas, leading to permanent blindness
c) low; can prove to be fatal for the baby
d) high; can prove to be fatal for the baby
1.2
a
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