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Figure 70-16
Pulse oximetry in infants born at various altitudes.
In infants born in Lhasa (altitude of 3658 m), Han Chinese children have progressive
arterial desaturation, whereas Tibetan infants, following a slight drop shortly after
birth, have a stable SpO2
. (Redrawn
from Niermeyer S: Cardiopulmonary transition in the high altitude infant. High
Alt Med Biol 4:225, 2003.)
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