Placental Stage and Newborn Transition
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Questions and Answers

What is necessary for the proper development of blood vessels?

  • Anatomical changes in lungs
  • High cardiac output
  • Presence of oxygen in the fetal lungs
  • Experience of blood flow (correct)

Why is the passage of blood through the pulmonary circuit after birth significant?

  • To ensure proper oxygenation of the blood
  • To allow oxygen exchange with the amniotic fluid
  • To provide oxygen to the fetal lung tissue (correct)
  • To prevent cardiovascular problems in the fetus

Which physiological change is commonly associated with the respiratory system during pregnancy?

  • Reduced nasal congestion
  • Increased breathlessness (dyspnea) (correct)
  • Decreased tidal volume
  • Lower risk of morning sickness

What causes Lordosis during pregnancy?

<p>Changes in center of gravity (A)</p> Signup and view all the answers

Which maternal hormone stimulates breast maturation and fetal growth during pregnancy?

<p>hPL (human placental lactogen) (C)</p> Signup and view all the answers

What condition might arise due to stress incontinence during pregnancy?

<p>Varicose veins (B)</p> Signup and view all the answers

What is the main trigger for the baby's first breath?

<p>Decreased CO2 levels (D)</p> Signup and view all the answers

What is the approximate initial respiratory rate of a newborn in the first two weeks?

<p>~45 per minute (B)</p> Signup and view all the answers

Why is it difficult for premature babies to keep their lungs inflated?

<p>Low surfactant levels (B)</p> Signup and view all the answers

What best describes the transitional period of increased instability in newborns?

<p>6-8 hours after birth (C)</p> Signup and view all the answers

What happens to the fetal shunts in a newborn shortly after birth?

<p>Close within 30 minutes (C)</p> Signup and view all the answers

Which vessel remains open for up to a year after birth?

<p>Foramen ovale (C)</p> Signup and view all the answers

Why do health professionals often look for the outward appearance of structures like the ears in neonatal care?

<p>Ears form at the same time as certain internal organs and could indicate a malfunction of overall development during that time period. (D)</p> Signup and view all the answers

What is the primary focus of growth during the fetal period?

<p>Rapid growth of the fetal body. (D)</p> Signup and view all the answers

When can most bones in the fetus be identified?

<p>Fourth month (A)</p> Signup and view all the answers

What is the function of Vernix caseosa in fetal development?

<p>Protection of the skin in utero. (B)</p> Signup and view all the answers

What unique vascular modifications are present in fetal circulation?

<p>Umbilical arteries and vein, ductus venosus, foramen ovale, and ductus arteriosus. (D)</p> Signup and view all the answers

Why is it necessary to send some blood through the pulmonary circuit in a fetus?

<p>To develop the lungs. (B)</p> Signup and view all the answers

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