Doctor insights on:
What Is Surfactant In The 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
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
Keep air sacs open: Surfactants, which are made by the body and are also available as a medication for babies who are deficient in them (usually premie), coat the inside of the tiny air sacs in the lung and keep them open when you exhale. Just like a collapsed balloon is hard to inflate, a collapsed air sac is hard to open. When it doesn't close completely, it's easier to open with the next breath. ...Read more
Lung chemical: This is an essential substance that lines the airspaces in the lung, and by a minor biological miracle prevents the bigger ones from explanding and making the smaller ones deflate. It may be given to premature babies who cannot make enough on their own. ...Read more
Helpspreemiesbreathe: Premature infants often do not have enough surfactant at birth. This surfactant is made by everyone to help keep the alveoli open to facilitate gas exchange. Sometimes a surfactant needs to be administered by endotracheal tube to the lungs to help tide the infant over until the infant makes enough-1-2 days. There is surfactant derived from cow and pigs lung. There is also a synthetic surfactant. ...Read more
Hi, being a medico, i wanna know, surfactant reduces the surface tension of what in the alveolus ?
I've had a chronic dry cough since having radiotherapy. All tests clear. Might this be due low levels of surfactant?
Used in NICU: There are at least two I am aware of that are used by neonatologists for infants with respiratory distress syndrome. ...Read more
Lung cell secretions: Surfactants are substances secreted by certain cells of the lung, named Type II cells, that aid in reducing surface tension at the surface of the alveoli, the tiny air sacs of the lung that exchange oxygen and carbon dioxide. As the lungs mature in the fetus during pregnancy, the Type II cells increase their secretion and turnover of surfactant to mature the lungs in premature infants with ^ GA ...Read more
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