we conclude that 1 ) sustained fetal t3 infusion is one of the few factors that can increase fetal cardiac output , and may play a role in increasing cardiac output in the newborn infant , 2 ) t3 infusion results in an increased rate of metabolism with increased oxygen consumption , and 3 ) placental reserve for oxygen diffusion exceeds normal oxygen requirements .
C0015965
fetal
C0015935
fetal cardiac