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Doctor insights on: Steroids For Fetal Lungs

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Lung (Definition)

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


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How long does it take for a fetal lungs mature after steroid shots?

How long does it take for a fetal lungs mature after steroid shots?

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

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How long should it take for a fetus's lung to mature when taking steroid shots?

How long should it take for a fetus's lung to mature when taking steroid shots?

1-2 days.: After 1-2 days from the first Betamethasone shot there is fetal lung maturation; it is maximal for 2-7 days and dissipates after 10-14 days. ...Read more

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How long does it take for a fetus's lungs to mature when taking steroid shots?

How long does it take for a fetus's lungs to mature when taking steroid shots?

Depends: Depends on the age of the fetus but if you are talking about near term >35 weeks, about 24-48 hours of steroids. If fetus is younger 32-34 weeks, more like 72 hours. Even term infants do not have mature lungs, lungs continue to develop until the child is about 2 years old! ...Read more

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At which week do fetal lungs start to mature and by which week they are completed?

At which week do fetal lungs start to mature and by which week they are completed?

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

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What sort of fetal lung diseases can occur?

What sort of fetal lung diseases can occur?

Many.: Caml (cystic adenomatoid malformation of the fetal lung), bps (bronchopulmonary sequestration), lobar emphysema, bronchial atresia, hamartomas, tracheal agenesis/chaos (congenital high-airway obstruction sequence). ...Read more

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How does the test for fetal lung maturity work?

How does the test for fetal lung maturity work?

Yes: Stress and duration in utero prepare the lungs to stay open using surfactant. Respiration not needed in utero, mom and placenta do the work. The amnio and ratio forecast how able the lungs are to deal with ambient atmosphere and pressure to respire normlly. ...Read more

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Would steroids ever be prescribed for someone with a ruptured lung?

Would steroids ever be prescribed for someone with a ruptured lung?

Not usually: Steroids might be used if the patient has COPD but not for lung rupture specifically. ...Read more

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Can you please tell me why diabetes affects the lung surfactant of the fetus?

Can you please tell me why diabetes affects the lung surfactant of the fetus?

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

Dr. Gregg Albers
2,228 doctors shared insights

Steroids (Definition)

Many children with croup need prescription medications. Often steroids can ...Read more