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Steroids For Fetal Lungs
Deoxygenated blood enters the lungs from the right side of the heart and travels to the lungs. When you inspire, oxygen flows into the lungs, transverses the capilliares and attaches to hemoglobin down a gradient. At the same time, co2 diffuses into the capilaries and is expelled with exhalation. Oxygen rich blood then flows to the left side of the heart and into the ...Read more
24 hrs to one week: Steroid injections given to women at risk of delivering premature babies help fetal lung maturity within 24 hrs and lasts for week. ...Read more
Long answer: Fetal lungs go through 5 major stages beginning with the embryonic stage when the primordial lung buds form at 4 weeks of gestation, and end with the alveolar phase at about 36 weeks as the luns start to form the many millions of tiny air sacs known as alveoli. Lung maturation continues after birth until almost 8 years of age when adult type of lungs are fully formed. The whole answer is in books ...Read more
Delayed maturation: Maternal diabetes during pregnancy has an impact on the maturation of the baby's lungs, especially the surfactant system which tends to become fully functional around 38-40th week in normal pregnancies. With maternal diabetes, this process gets delayed & can lead to problems with breathing for the baby after birth (esp if born by c section). Talk to yr doc for further eval of lung maturity by test. ...Read more
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