NCC Maternal Newborn Nursing Practice Exam 2025 – The All-in-One Resource for Exam Success!

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What is the main purpose of performing a PG test?

Confirm fetal lung maturity

The main purpose of performing a PG test, which refers to the phosphatidylglycerol test, is to confirm fetal lung maturity. This test is particularly significant because it assesses the presence of phosphatidylglycerol in the amniotic fluid, which is a substance produced by the fetal lungs. The presence of PG indicates that the fetal lungs are mature enough to produce surfactant, a substance that prevents the collapse of the alveoli after birth and is crucial for proper respiratory function in the neonate.

Understanding lung maturity is essential, especially in pregnancies that may require early delivery, as a fetus with immature lungs is at a higher risk for respiratory complications such as neonatal respiratory distress syndrome (NRDS). Therefore, the PG test serves an important role in planning management strategies for premature infants, ensuring they receive appropriate interventions if lung maturity is not yet achieved.

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Assess fetal growth

Diagnose congenital anomalies

Monitor maternal health

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