To provide competent newborn care, the nurse understands that respirations are initiated at birth as a result of
a. An increase in the PO2 and a decrease in PCO2
b. The continued functioning of the foramen ovale
c. Chemical, thermal, sensory, and mechanical factors
d. Drying off the infant
C
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A The PO2 decreases at birth and the PCO2 increases.
B The foramen ovale closes at birth.
C A variety of these factors are responsible for initiation of respirations.
D Tactile stimuli aid in initiating respirations, but are not the main cause.
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