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Regarding the development of the respiratory system, maternity nurses should be aware that:

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Regarding the development of the respiratory system, maternity nurses should be aware that:

Regarding the development of the respiratory system, maternity nurses should be aware that:

a. The respiratory system does not begin developing until after the embryonic stage.
b. The infant's lungs are considered mature when the lecithin/sphingomyelin (L/S) ratio is 1:1, at about 32 weeks.
c. Maternal hypertension can reduce maternal-placental blood flow, accelerating lung maturity.
d. Fetal respiratory movements are not visible on ultrasound scans until at least 16 weeks.

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XIOMARAMR Author

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Thanks for your help!!

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