Neo/Peds Respiratory Care: Study Guide for Final || with 100% Error-free Answers.

What does AGA, SGA and LGA mean? and what are the percentiles ? correct answers *AGA*- Appropriate for gestational age/weight/ height *10-90%* *SGA*- Small for gestational age/ weight/ height *< 10%* *LGA*- Large for gestational age/ weight/ height *>90%* Know gravida and para correct answers *Grivida (G)*- number of pregnancies * Para (P)*- number of live births What does the placenta do? correct answers Functions as the organ of respiration for growing fetus, removes waste, and provides oxygen and nutrients. What makes up the umbilical cord and what does each structure do? correct answers - *2 umbilical arteries* which carry deoxygenated blood from the fetus to the placenta - *1 umbilical vein* carries oxygen blood from the placenta to the fetus - *Wharton's Jelly* provides support and keeps from kinking What is fetal lung fluid and what does it do? correct answers Provides a slight positive pressure in the airway as development to keep the lungs inflated, providing a building block and stimulates normal lung development. What germinal tissue layer does the respiratory tract come from? correct answers Endoderm When is extrauterine viability possible? and what would be needed in those cases? correct answers -22 weeks *O2, surfactant, mechanical ventilation* When are mature alveoli present? How many alveoli are present at birth? How many at age 8? correct answers BIRTH: *50-150 million* AGE 8: *480 million* What does sufactant do? correct answers Lowers the surface tension within the alveolus and reduces the effort needed to open the alveolus Where is surfactant produced? correct answers Type II alveolar cells (pneumocystis) What is surfactant made up of? correct answers phospholipids and proteins When does surfactant start being produced? correct answers Week *24*