text_1: Newborn at 38-weeks gestation, term, Cesarean section for fetal distress, uncontrolled diabetic.  Oximeter was 50, not tachypneic, no murmur.  I (investigator) prompted, "So the question was, what's causing the low oxygen saturations"?  The physician said, "Yes, my partner said, 'I didn't have any idea what was going on.'"
text_2: What would cause low oxygen saturation in a newborn in the absence of tachypnea?