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Doctor insights on: What Is The Probability That My Baby Lungs To Be Mature On An Amnio At 37w5d

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What is the probability that my baby lungs to be mature on an amnio at 37w5d?

What is the probability that my baby lungs to be mature on an amnio at 37w5d?

Doesn't matter.: Elective delivery should be discouraged prior to 39 weeks gestation regardless of lung maturity tests. Babies born electively (with no other medical indication) prior to 39 weeks have higher risks of respiratory distress and nicu admission even when the amnio test demonstrates "lung maturity." if there is a medical reason for delivery, the amnio is unnecessary. ...Read more

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Dr. Monica Popov
334 doctors shared insights

Amniocentesis (Definition)

Amniocentesis is a procedure used to draw a sample of the amniotic fluid that surrounds and cushions the baby in the womb. This fluid contains cells that have been sloughed off of the developing fetus. Amniocentesis is most often used to detect genetic abnormalities, though the results can also reveal the baby's sex, gauge lung maturity (if done close to term), detect amniotic fluid infections, or ...Read more


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I have an amnio coming up at 37weeks. How does the test measure lung function? What in the fluid says if they are mature or not?

I have an amnio coming up at 37weeks. How does the test measure lung function? What in the fluid says if they are mature or not?

Several: It measure not function, but the presence of certain chemicals whose presence indicates that mature cells are present. That indicates the vast likelihood that the baby's lung functions would be "mature". ...Read more

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Underdeveloped lungs in my baby. How long before they repeat the amnio?

Underdeveloped lungs in my baby. How long before they repeat the amnio?

About a week: Generally, the interval between amnios gone for fetal lung maturity are spaced about a week apart somewhat depending on the urgency of wanting to deliver and how near to maturity the initial testing was. ...Read more

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How far into in the pregnancy are the babies lungs mature at?

How far into in the pregnancy are the babies lungs mature at?

34 weeks GA: Typically antenatal steroids are given to mothers who are going to deliver before 34 weeks gestation, as the lungs aren't mature by this time. They still may be given after 34 weeks, in some circumstances, but most babies have mature lungs and breathe well on their own without mothers getting steroids by 34 wks GA. ...Read more

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Are steroid injections which are given to mature babies lungs. Harmful to unborn?

Are steroid injections which are given to mature babies lungs. Harmful to unborn?

No: The steroid used is specific to stabilizing membranes & improving lung production of surfactant. It mimics what happens naturally when if mom develops high blood pressure & natural stress steroids speed lung maturity.It is only given at specific gestation's where research shows it will help. No long term negatives are seen for baby. ...Read more

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Should I get betamethasone shots if my amniocentesis tests showed my baby will have lung problems?

Should I get betamethasone shots if my amniocentesis tests showed my baby will have lung problems?

Talk to your MD: If you are close to delivery or a c-section your OB may recommend this treatment to help your child. If you still have time to wait the baby may mature on his/her own. Talk to your OB about your case. ...Read more

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If the amniocentesis shows lung problems. Can this be reversed?

If the amniocentesis shows lung problems. Can this be reversed?

Yes: The amniocentesis will generally show if the baby's lungs are mature yet or not. Given enough time all baby's will have mature lungs. ...Read more

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What alternatives are there to amniocentesis for lung function?

What alternatives are there to amniocentesis for lung function?

Good dates, U/S!: A first half of pregnancy sonogram can obviate the need for flm amniocentesis and is the best option to accurately date your pregnancy! other markers of fetal maturity include the proximal humeral epiphysis, which appears after 38 weeks. ...Read more

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